Lex has 84 quarters and nickels worth a total of $17.80. Which equation can be used to find q, the number of quarters Alex has?

Lisa used 10 centimeters of tape to wrap 5 presents. How many presents did Lisa wrap if she used 34 centimeters of tape? Assume the relationship is directly proportional.

Which system will have an infinite number of solutions? A. -4y = - 6x + 8 y=3/2x-2 B. -4x + 5y = 8 5y = - 4x + 6 C. -2x + 4y = 3 y=1/2x+6 D. 2x - 6y = 9 5y = - 4x + 6

Whats 1+1-2 times 3 + 4 - 2

Choose the best description for the real number square root of 35. Irrational, because it is not a terminating or repeating decimal Irrational, because it is a repeating decimal Rational, because it is not a terminating or repeating decimal

How do I solve a system of equation? Can someone explain it to me? For example: x - y = 4 2x + y = 5

Verify if f (x) = 1/2x-2 (and g (x)) = 2x + 4 are inverses.

Are 1/3 and 5/12 equivalent

Sally spent half of her allowance going to the movies. She washed the family car and earned 9 dollars. What is her weekly allowance if she ended with 12 dollars

3. The surface of an office desk has an area of 15 square feet. Its length is 5 feet. How wide is the office desk?

A company plans to enclose three parallel rectangular areas for sorting returned goods. The three areas are within one large rectangular area and 952 yd of fencing is available.