Which equation and variable would be easiest to solve for in order to solve the system by substitution?

3x+2y=16

7x+y=19

Two numbers have a product of 175 and a sum of 40 what are the numbers?

Assuming a hole is the shape of a cylinder whose volume is approximately 4000 cubic feet and height 4.8 miles. What is the radius of the hole to the nearest hundredth of a foot.

2+2-2-3-87+20090 then split in half

If $1000 is invested at an annual interest rate of 8% compounded quarterly, how much is available after 12 years? Select one: a. $2,518.17 b. $2,587,07 c. $2,611.70 d. $1,587.07

A quickie. If n identical dice are rolled, number of possible outcomes are?

5/4 in to a decimal

For what value of b does (1/12) ^2b x 12^-2b+2=12 -1/2 -1/4 1/4 no solution

Suppose you have lunch with four friends and the total check (with tax and tip) is $155. How much should you each pay if you split the check evenly?

150 of 300 students at smith middle school are in band. of those only 10% play saxophone. next year enrollment is expected to reach 400 students. About how many of those students will play saxophone?

Julie and Jim live 230 miles apart. At the same time, they start driving toward each other on the same road. Julie's constant rate is 60 mph and Jim's constant speed is 55 mph. How many hours will it take them to meet?