Joe paid $14.00 for a board game. this is 70% of the original price ? $4.20 $20.00 $9.80 $21.00

I believe this question should be from an I-Ready test. The answer would be $20.00. Because 70% of 20.00 is 14

Top right since it passes vertical line test

Hello!

the answer is:

the correct option:

b.

why?

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!