The mean iq score for students is 105

What is the value of x enter your answer in the box (3x+50

Jane is cooking beans and rice for dinner tonight. she has 4 cans of black beans, 6 cans of red beans, and 3 cans of garbanzo beans in her cupboard. if she grabs a can of beans without looking at the label, what is the probability of her making black beans and rice for dinner?

Which is an example of using the distributive property to multiply -5x^3(3x^2+3x-1) ?