You'll find the attached formulas quite helpful.
4.8 cans for every dollar
10 million divided by 10 million is 1.
Any number divided by itself is 1.
Answer:
x = 20
Step-by-step explanation:
we are given the value of f(x), replace it in the first equation
15 = x - 5
solve for x by adding 5 on both sides
15 + 5 = x
20 = x or x = 20
15 years ago pack
= 4 x 0.50 + 0.04
= 2.04
15 years ago, pack costed $2.04
Hope this helps. - M