SHOW WORK AND I WILL MAKW BRAINLIEST !!
a 5 kg bag of grass seed covers an area of 1500 m2. How much seed is needed to
cover a square park with a side length of 400 m?

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x