Determine whether each statement is always true, sometimes true, or never true. Select Always, Sometimes, or Never for each statement. CO Always O Sometimes O Never If m is an integer, then 8 x 10" is equal to 8. O Always O Sometimes O Never -- If d is a positive integer, then 4 × 10 is positive. 1 CO Always O Sometimes O Never If q is an integer, then 7 x 10 is equivalent to 7 x 109 O Always O Sometimes O Never If c is greater than b, then 9 x 10 is greater than 9 × 10

Q: Evaluate if x=4,8,3,-2 ∑x ∑x+1 ∑(x+1) 3∑x - 4

A: Given that  if x=4,8,3,-2

Q: 1 1 3, 2 1 1 x 3|1 ||

A:

Q: simplify each numerical expression. (2-3 + 3-2)-1

A: To simplify the expression, negative exponent has to be converted to positive exponent. This can be…

Q: If a rectangle's length is 2c - 3 and the width is 4c +4, write an expression for the perimeter and…

A:

Q: simplify each numerical expression. -10-2

A: Given, numerical expression, -10-2 we know  a-b=1ab now, y=-10-2 simplify this expression y=-1102

Q: perform the indicated operation and simplify. √-2 √-6

A: Given -2-6

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.