Which expressions are equivalent to 10 over 10 to the 3/4 power?

Average acceleration: i have no idea how to do this.

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42