Need in these 3 algebra questions 7. add: (3s2 + 7s + 2) + (5s2 + 9s – 1) a. 8s2 + 16s + 3 b. 8s4 + 16s + 1 c. 8s2 + 16s + 1 d. –2s2 – 2s + 1 8. (–3t2u3)(5t7u8) = a. –15t14u24 b. 2t9u11 c. –15t–5u–5 d. –15t9u11 11. the square of a number is equal to 6 more than the number. find all such numbers. a. –4; –3 b. –2 c. 3; –2 d. –3

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?