1. Find the area of a triangle with a base of 10 in. and an altitude of 14 in.A. 24 sq. in.B. 70 sq. in.C. 140 sq. in.D. 280 sq. in.2. Suppose youre given the formula R = s + 2t. If you know that s is three times greater than t how could you rewrite the formula?A. R = 3(s + 2t)B. R = 3(s + t)C. R = 5sD. R = 5t3. During a four-week period you worked the following hours:Week 136 3/8 hrWeek 241 1/4 hrWeek 341 1/2 hrWeek 438 3/8 hrWhat is the average number of hours you worked in one week?A. 38 1/4B. 38 3/4C. 38 1/8D. 39 3/84. The expression a = 3b2 + 2 can be written in words as the quantity a is equal toA. three times the quantity two plus b squared.B. three times the square root of b plus two.C. two more than three times the quantity b squared.D. two plus the square root of three b.