a company that sells phones generates revenue given by the function r(x) = x2 + 20x + 50 (where x is the number of phones produced per month). the cost of production is given by the function c(x) = 50x + 30. which function gives the profit earned by the company?

x^2 + 70x + 80
x^2 + 70x + 20
x^2 − 30x + 20
x^2 + 30x + 20

Will mark brainliest if you answer ! the taco shop sold 198 lunches friday. this number is 3 more than 3 times the number they sold monday. let n represent the number of lunches sold monday. which equation shows an equality between two different ways of expressing the number of lunches sold on friday? a. n – 3 = 198 b. 3n – 3 = 198 c. 3n + 3 = 198 d. n + 3 = 198

How many bananas are in a fruit bowl that has 200 total apples and bananas if there are 31 bananas for every 93 apples

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.