Could you help me???
It’s year8 maths

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

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