i know the answer its b but how i explain

212 to x and 7 to 10
a.24
b.30
c.40

212 is wrong its supposed to be 21

Explain it the same way we showed you a few minutes ago.

okay im explain tell me if im doing it wright

ms.sue

21/x = 7/10 ?

multiply both sides by 10 x

21 * (10 * x)/x = 7 * (10 * x)/10

210 = 7 x

x = 210/7

To solve this problem, you need to evaluate two separate expressions: 212 to x and 7 to 10.

First, let's look at "212 to x." This means we need to find a value for x that, when 212 is raised to that power, will give us the same result. To do this, we need to find the logarithm of 212 with a base of x.

The logarithm of a number represents the exponent to which the base must be raised to obtain that number. So in this case, we need to find the value of x that will make log base x of 212 equal to x.

Unfortunately, we cannot easily calculate logarithms with non-standard bases. However, we can use the change of base formula to convert the logarithm from base x to another common base, such as base 10 or base e (natural logarithm).

Now, let's examine "7 to 10." This means we need to calculate 7 raised to the power of 10. Using a calculator or any programming language capable of numerical calculations, we can compute this value directly.

Once you have the values for "212 to x" and "7 to 10," you can compare them to the answer choices: 24, 30, and 40. Simply substitute your calculated values into the expressions and see which answer choice matches.

In this particular case, you mentioned that the correct answer is b. Therefore, when you evaluate the expressions, you will find that 212 to x is not equal to 7 to 10. Hence, b cannot be the correct answer.

To determine the correct answer, you would need to continue with the calculations or provide more information.