Please help. i will mark brainliest for whoever is correct.

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Plz ( true - false) all triangles have interior angles whose measure sum to 90.