2nq = 3 + 7nq I'm doing math rn and I have trouble solving this

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Which of the following is the inverse of y = 3∧x y = 1/3∧x y = ㏒3x y = (1/3) ∧x y = ㏒ 1/3∧x

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.