9x+8y=15

9x+8y=30

tell whether the system has one solution, infinitely manny solutions or no solution.

The ratio of lions to tigers at the metropolitan zoo is the 12 to 8 which ratio is equivalent to 12 to 8

Kevin went to the nursery and bought a 5 ft tall tree. After planting the tree, Kevin made a table to record the height, h, of the tree, t years after it was planted.

Jon walked 8 miles in 3 hours. Jim walked 14 miles in 5 hours. Are these rates in proportion? If no, who walked faster?

2 (x-3) = 8 (x-6) what is x?

Melanie packs boxes of envelopes into a larger box. The volume of each box of envelopes is 1,200 cubic centimeters. Which is the best estimate for the volume of the large box?

Suppose y varies with x, and y=14 when x=-4. what is the value of y when x=-6

The table below shows the relationship between the number of hours Nina worked and the number of hours Kathy worked.

Determine all of the roots (or zeros) 4x^3-4x^2-11x+6=0 if 2 is known to be one of the roots

In a small town there are two main sections called the Hill section and the Lake section. The town has a population of 4298. The number of people who live in the Hill section is 188 more than twice the number of people who live in the Lake section.

Two accounts each begin with a deposit of $5000. Both accounts have rates of 5.7 %, but one account compounds interest once a year while the other account compounds interest continuously.