An angle exceeds 4 times it’s supplement by 10. find both angles

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

For what value of (y) is 3^3/3^y =1/9

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?