Apply lg on both sides.
lg7^x^2 = lg9^x
Bring the power forward.
x^2lg7 = xlg9
x^2/x = lg9/lg7
x = lg9/lg7 = 1.13
Answer:
i belive its 100
Step-by-step explanation:
2x because its 2 times the price of the book (x)
Answer:
Step-by-step explanation:
So you do 3.29*12.6=41.454. Since we are dealing with money we round to get $41.45