F= (x) cos ÷ sin.
so f would be -5
It will be c. 2x because x+2x = 3x, and if you add that by 2x it will give you 5x.
T=months so if you have 7 months you would plug 7 in for (t)
making the equation g(7) = 2(7)
0.35x=73.85, comgining moving terms
divide both sides by 0.35
x=211 quarters, which is $52.75 ANSWER
x+5=216 dimes, which is $21.60 ANSWER
That total is $74.35