It costs $2.80 to buy 4 apples. You want to buy 7 apples. How much will that cost?

What is not true about kl and mn? what is mn? (show your work)

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.

The volume of the a sphere whoes diameter is 18 cm is cubic cm . if it's diameter were reduced by half, it's volume would be of its original volume