Jeremiah buys lunch from the school cafeteria each day of school. He buys one slice of pizza and two bags of chips. The pizza costs p dollars and the chips cost c dollars. The expression 5(p + 2c) describes how much Jeremiah spends on school lunches for the week. What does 5 represent in this expression?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Graph the equationy= x+3[tex]y = x + 3[/tex]

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?