5(2x + 7) -3x = 7(x+5) one solution, infinitely many, or no solutions? help I'm on a timed math test this is my last one I have already tried doing it

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Plz hurry evaluate the expression a+b where a=8 and b=19