Help me find the equation of straight line (2,3)​

Natasha spent 1 1/2 hours on the beach. she fell asleep for 3/4 of the time she was on the beach and then woke up with a terrible sunburn.how many hours was natasha asleep on the beach?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10