Aprincipal is ordering pizzas for a school pizza party. he knows that 9 pizzas will
feed 25 students. if there are 300 students in the school, how many pizzas will he
need to order?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Alogical argument that is presented in graphical form using boxes and arrows is called?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?