X^2+xy=20 and y^2+xy=30 what is xy?

The perimeter of a rentangular is 60 the length is 16 feet what the width

12 posters for 36 student; 21 poster for 63 students

is 6.5 inches. For every two inches, this represents two hundred feet. Determine the actual distance in feet

Find the constant of proportionality for b) y=2x

Round 47 963 to the nearest hundreds

16a-24=8 (2a-3) how do I solve this

Mr. Anson bought 3 student tickets that each cost the same amount and an adult ticket that cost $12. In all, Mr. Anson spent more than $36. Which represents the cost of each student ticket?

3c-d=tcould you solve for c

How many times greater is the 7 in the hundreds place than the 7 in the tens place in the number 4,772

a school art teacher designs a circular flower bed inside a rectangular sandbox the sandbox is 6 feet wide and 10 feet long how many square feet will there be for sand after the flower bed is installed? us 3.14