verizon's plan costs $75 per month and gives you unlimited talk, and 500 messages per month, and no dataplan. If you send more 500 text messages, on top of the $75 it will cost $.10 per text overage. Write the piecewise function for the following situation. If you send 800 text messages, then how much will your bill be?

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

What number is 7 units left of -15?

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.