PLEASE HELP ME ASAP Explain how to write:
a. The sum of a number and the product of the same
b. The ratio of twice a number and 5

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1