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For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Hey am have account in but wished to create an account here you guys will me with my make new friends of uk !

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.