victoria took a test and got 80% of the question right she got 20 questions correct how many questions did she have?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

What is the range for 31,39,29,34,37,24,36,33,34,28