A varies jointly with b and c. a=10 when b=5 and c=15. Find c when a=15 and b=10​

Find the difference (8ab+a+2) - (3ab+6)

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42