John answered 80% of the questions correctly. There were 30 questions on the test. How many questions did John answer correctly?

This needs to be done quick you are studying different function tools and begin working with this function y=-160-9(x) use the equation to answer the question y=-160-9(x) what is the y value when x equals -13? y=-160-9(x)

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

What expression is equivalent to log3(x+4)