Solve each system:

80x+60y=85

100x-40y=20

A car rental company charges 35 dollars a day plus 25 cents a mile to rent a car. What linear equation could determine the cost to rent a car for one day?

Solve the proportion for the variable given. 5 / (r+8) = 6/4 A) 4.3 B) - 4.67 C) - 6.7 D) - 3.4 Answer is B) - 4.67 (Not asking I'm informing)

Arasoo is 4 years older than peter. Ali is 2 years younger than peter. If the sum of ages is 47. What is their respective ages

A construction company is planning to bid on a building contract. The bid costs the company $1700. The probability that the bid is accepted is 1/4. If the bid is accepted, the company will make $16,800 minus the cost of the bid.

Niko uses 12 marshmallows and 8 graham crackers to make 4s'mores how many marshmallows and graham crackers does niko need to make 3s'mores?

What is the possibility of not rolling a 5 on a standard cube

How to rename 805 tens?

2.33 written as a mixed number in simplest form

What is the perimeter? 2 (4x-3) 2x+12 (square)

What is the range of the following numbers? 12, 20, 18, 25, 6