1. 0.2(15 - 3t) - 1.8 2. 2.2k + 5 + 7.9k + 8
3. 1/3(9z - 27) +12
SOMEONE PLEASE PLEASE SIMPLIFY EACH QUESTION!!:)

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?