One serving of wheat square cereal has 7 grams of fiber, which is 38% of the recommended daily amount. What is the total recommended daily amount of fiber? Round your answer to the nearest tenth

18.4

Step-by-step explanation:

To find this, we want to find the reciprocal of 38%, or 0.38. To do that, simply, using a calculator, do 0.38 ^ -1. We get ~2.63. Multiply ~2.63 and 7 to get our answer.

The reason this is the case is because a fraction/decimal multiplied by its reciprocal is always 1 (or 100% of the amount)

the answer will be b x² +x-1

step-by-step explanation:

the answer is 13 cm