Select the equivalent expression for the following: 12^3 * 12^9 * 12^4 * 12^2 a:
12^18
b:
12^216
c:
20,736^18
d:
2.66 *10^19

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.