If 2^8 - 2^7 = 2^x, what number is x? please answer asap!!

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

Solve 2^x=32 and rewrite this equation in a logarithmic form

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?