You are going to the mall and have $20 total to spend. You plan to buy earrings, x, and phone cases, y. Write an equation to represent how many of each item you can buy if earrings are $2
dollars each and phone cases are $4 dollars each.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Here is another math questions. i will keep asking different questions. 4^2x=6

Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?