Will the interest rate on subsidized and unsubsidized loans change over time

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

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document