1. (x + 2) (x +5) 2. (2y + 3) (3y + 2)
3. (3m-n) (9m² + 3mn + n?)
4. (1 + 3m)
5. (7-5)(7m+5)
6. (2m-n)?
7. (a- 5b2)(a + 5b2)
8. (2m + 6)?
9. (x2 + 5y)
10.(n + 4) (2n-7)​

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

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?