If 5x + 3y = 12 and 4x - 5y = 17, what is y?

What are the roots of 12x=9+5x^2

A number is between - 2 and - 10. What is the least possible integer value of this number? What is the greatest possible integer or value of this number?

Which equivalent fractions can you use to find the difference of 5 and 3/13 and 1 and 4/9?

A farmer uses 1000 meters of fencing to build a rectangular corral. One side of the corral has length x. Express the area A of the corral as a function of x.

Jose has 3 fewer pants than he has shirts. How many more shirts does Jose have?

Negative one times the sum of twice a number and 3 is equal to two times the difference of - 4 times the number and 3. What is the number?

the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.

John and Mary have equal numbers of beads. John gives Mary 54 beads and then Mary has 7 times as many beads as John. How many beads do they have in all?

What is the difference of the given values to the correct level of precision? 8.501 cm -0.27 cm 8 cm 8.2 cm 8.23 cm 8.231 cm

The Donatones drove 150 miles in 3 hours. At this rate how long will it take them to drive 400 miles?