Simplify by combining like terms.

3r + n2 - r + 5 - 2n + 2

group of answer choices

a)2r + n2 - 2n +7

b)2r + 3n2 - 2

c)4r + 3n2 + 7

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?

Put the following steps for calculating net worth in the correct order

If the perimeter of the square equals the perimeter of the regular pentagon. each side of a pentagon is 16cm long. how long is each side of the square?