Find the number. Solve this question please!!
A) 30 is 90% of what number?

33.33

Step-by-step explanation:

We have, 90% × x = 30

or,  90 / 100  × x = 30

Multiplying both sides by 100 and dividing both sides by 90,

we have x = 30 ×  100 / 90

x = 33.33

If you are using a calculator, simply enter 30×100÷90, which will give you the answer.

https://answers.everydaycalculation.com/percent-of-what-number/90-30

The answer to 30 is 90% of what number is 33.33.

d) -1

step-by-step explanation:

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet