algebra Quiz

Question Number 1 What is 10 times to a number x subtracted from 40 is equal to 90? A. 10x-40 B. 40-10x=90 C. 10x-40=90 Question Number 2 what is 50 percent of a number equal to 120? A. 48 B. 78 C. 60 D. 84 Question Number 3 How many terms are there in 2x+90yx-42w A. 3 B. 1 C. 2 D. 4 Question Number 4 Is it a monomial,binomial,trinomial or polynomial:2zy,7yxz,bx A. binomial B. monomial C. trinomial D. polynomial