P=2L+2W and L=2W-5
2(2W-5)+2W=50
4W-10+2W=50
6W-10=50
6W=60
W=10
Answer:
The equation — E = mc2 — means "energy equals mass times the speed of light squared." It shows that energy (E) and mass (m) are interchangeable; they are different forms of the same thing. If mass is somehow totally converted into energy, it also shows how much energy would reside inside that mass: quite a lot.
Step-by-step explanation:
A is the answer I hope e2020 is going good for you
Answer:
Coefficient is equal to 12
Amount of tax paid = 43-40 = 3
Tax rate = 3/40 = 0.75
0.75 x 100 = 7.5%
Tax rate = 7.5%
