What 2 number add up to 0.21. 0.01 , 0.11 , 1.1 , 0.1 , 0.9 , 1.2

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

What is the inverse of the function f(x) = 2x + 1?