Andrew is 17 years old, which is 3 years more than twice as old as his sister. Andrew's sister is a years old. Which value of a makes the equation 17 = 2a + 3 true?

The difference of two numbers, a and b, is 21. The difference of 5 times a and two times b is 18. What are the values of a and b? A. 4,1 B. - 19,40 B. 20,1 C. 30,9 D. - 8,-29

Investors buy a studio apartment for $180,000. Of this amount, they have a down payment of $54,000. Their down payment is what percent of the purchase price? What percent of the purchase price would a $72,000 down payment be?

The town sam lives in has 48,968 people the time deborah lives in has 73,815 people how many more people live in debra's town

Cost for room and board; estimated costs for textbooks, food not covered by the meal plan (pizza, McDonalds, etc) and spending money (gas for car, movie nights, football games, a date, that awesome sweatshirt, etc)

Paula drives 252 miles and uses 8 gallons of gas. How far does she drive on one gallon of gas?

Find an equation equivalent to r=6secθ in rectangular coordinates and describe the graph of the equation.

A construction company is laying concrete for a new building. The company has 4 dump trucks with 1.15 tons of gravel each, and 2 dump trucks with 0.7 tons of sand. How many tons of material will the company use for the new building?

Find amount of tips on a 75 bill if a 50% tip is left

What is 5x - (8x+9) + 4.5x

the ration of the boys to the number of children at a carnival is 3:8 Therr were 40 more girls than boys at the carnival. How mnay children were there at the carnival altogether?