If z varies directly as x and y. what happens to the value of z if z is decreased by 25% and y is decreased by 20%.

Pis inversely proportional to x, and p=9 when x=4.find p when x=12

John paid php.15,000 as down payment for a personal computer. he paid php.1,500 monthly for a year. how much would he paid all in all? a. php. 30,000b. php. 31,000 c. php. 32,000d. php. 33,000​

How do you describe any two opposite angles in a parallelogram