And this too ?? anybody know how to do this ?

Find the total area for the regular pyramid ( follow the answer set up in the picture)

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.