Answer:
a = 1.6c
Step-by-step explanation:
Answer:
Step-by-step explanation:
40% of 400 would be 160.
40% is 0.4
so
0.4*400 = 160
to prove my work
400/160 = 0.4 = 40%
Exponents are used to note repeated multiplication. They are useful because they are used in formulas for area, volume, polynomials, and many other places in math.
Anything that is used often enough in math ends up being deemed important, and then they force children to earn it in math class.