Five light fixtures for a house cost these amounts: type A, $15.83; type B, $21.75; type C, $19.69; type D, $24.30; and type E, $9.49. a. What is the average cost per fixture? b. The electrician estimates a cost of $19.00 per fixture. How much over or under is the estimate for the five fixtures? a. b.

2. A class has 12 boys and 4 girls. What is the ratio of boys to girls written as a decimal? OA. 0.33 OB. 0.75 O c. 3.00 O D. 4.00

Tell whether the problem form is proportion A. 7/1,21/3 B.6/8 , 9/1 C. 3/6 ,9/12

2. Nazirs annual income is OMR 288000. His saving amount is OMR 36000. The ratio of his saving to expenditure is

b. 10 с. C. 2 d. 4 7. Stella earned $72 working 9 h. How much will she earn in 23 h? a. $207 b. $343 $86 d. $184 C. D. ह 1 -ht

A. The image below shows a side view and a plan view of a pool. You are required to: 1. Identify the number of 10x10 floor tiles needed to tile the pool floor. 2. Identify the number of 3x6 wall tiles need to tile the pool walls. 3. Calculate the cost to complete the job at $2400 per square foot. 84" 7.3m SIDE VIEW BIRDS EYE VIEW 3ft 8ft B. Your client has two columns with the diameter of 3' and the height of 10'. Calculate the number of 2"x6" wall tile strips will be needed to complete th job.

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Hair colors Choose the correct level of measurement. A. Interval OB. Nominal OC. Ordinal D. Ratio

7. Penguins huddle together to stay warm in very cold weather. Suppose that a certain type of pen- guin has a circular cross-section approximately 14 inches in diameter (so that if you looked down on the penguin from above, the shape you would see would be a circle, 14 inches in diameter). Suppose that a group of this type of penguin is huddling in a large circular cluster, about 20 feet in diameter. (All the penguins are still standing upright on the ground; they are not piled on top of each other.)

6. Complete the following table: Item a. Length of a piece of paper b. Height of a woman c. Width of a filmstrip d. Length of a cigarette e. length of two meter sticks laid end to end m 1.63 2 cm 35 mm 35 100