10. Define an operation ★ on the set of real numbers as follows:

a ★ b = 0.5ab

If 0.1 ★ b = 10, then evaluate bb.

a. 500

b. 200

c. 20

d. 50

Please explain how you got your answer.

Need on this geometry question. explain how you did it.

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?