Chan hee bought 3.4 pounds of coffee that cost $6.95 per pound. how much money did he spend on coffee?

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

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )