Estimate 76.216+66.36 by first rounding each number to the nearest whole number. I need the right answer pls

Write the factored form of this trinomial 9x^2+18x-7

Find the solution to this system 2,1 1,-2 1,2 -1,2

Newtons second law says force(f) is equal to mass (m) times avceration (a) a scientist wamts to calculate the force of an objecy where the acceleration of gravity (g) is 9.8m/ s2 use the function to calculate the force of an object with a mass73( m) of 0.29 kilograms