A bottle of 150 vitamins costs $5.25. What should a bottle with 250 vitamins cost?

8.75

Step-by-step explanation:

because it had increase in percent is about 70 % which is 70% do the same to 5.25 which is 8.75

$8.75

Step-by-step explanation:

We can use ratios to solve

150 vitamins       250 vitamins

=

$5.25                     $x

Using cross products

150x = 250 (5.25)

150x =1312.5

Divide each side by 150

x =1312.5/150

x =8.75

give more details

step-by-step explanation:

the answer is:

the correct option:

b.

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!