If a school bought 3 cheese pizzas and 1 pepperoni pizza how many cheese and pepperonis pizzas did they get if they bought 6 cheese pizzas

Answer this question only if you know the answer! 30 points and

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

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