Which equations have a solution of -6?
choose all correct answers.
a. x/-3 = 2
b. 18x = -3
c. -8 = 4x/3
d. -10x = -60
e. -42 = 7x
***there will be two right answers.

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?

How is this equation completed? i cannot find any examples in the book.