The formula of the perimeter of a rectangle is 2l+2w so look at the photo
F(x) = 2x^2 + 5x
f(3b) = 2(3b)^2 + 5(3b) = 2(9b^2) + 15b = 18b^2 + 15b
1. archaic
2. evangelists
3. Norman’s
4. John Wycliffe
5. Vulgar
Just download photomath bro, does everything for you.
