A train travels with a consistent speed of 64 km/ per Hour. How far can it travled in 4 hours

If the measure of xyz is 81 what is the measure of yz

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries