The sale price of a wedding cake after being discounted 20% is $315.60. Write an equation you can use to find the original cost of the wedding cake c?

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.

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

Ineed me i stuck and i don’t want to get it wrong