2. Sketch the graph of r² = cos 40.

Arturo is 54 years younger than Jennifer. 6 years ago, Jennifer's age was 3 times Arturo's age. How old is Arturo now?

It takes 10 hours to fill a 200m³tank using 4 pipes. How long would it take fill a 500m³tank using 2 pipes?

the sum of the ages of Juman ans Nina is 112 years ago. 6 years ago, Juwan age was 4 time Nina's age. how old is juwan now?

5 years ago a dad was 6 years older than 3 times his son's age at that time.  In 4 years, he will be 5 years older than twice the age of his son.   How old are they now?”

During the first part of a trip, adrian drove 36 miles at a certain speed. adrian drives another 36 miles on the second part of the trip at a speed of 10 mph faster. driving time for the entire trip was 91 mins. find the rate at which adrian drove during the first part of the trip.  please help explain.

3 pipes can be used to fill up a swimming pool with water. It takes 9 mins for pipe A to fill up the pool while 6 mins for pipe B. A third pipe C, takes 4 mins to empty the pool. How long would it take to fill up the pool given these conditions?

a marinade for chicken uses 2 parts of lime juice for every 3 parts of orange juice. if the marinade uses 1/3 cuo of lime juice, how much orange juice should be used?

It takes Yvez 6 hours to change the oil in his car. Sarah takes 13 hours to complete this same job, they work together, how long would they take? Did they work together?

The distance that Brad travels varies directly with the time spent traveling. Brad traveled 660 miles in 12 hours How many miles could Brad travel in 4 hours?