1. the ordered pair (2,7) is a solution of the equation: y - x = 5
a. true
b. false
2. the ordered pair (-3,10) is a solution of the equation: y + 4 = -2x
a. true
b. false

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

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?