Alvin correctly answered 18 questions on his unit 6 test. if there were 20 questions on the test, what percent of the questions did he get correct

90%

Step-by-step explanation:

Simply divide 18 by 20. It can be simplified by dividing both of them by 2 to get 9/10, which is equal to 90%.

Alvin got 90% of his test correct

Step-by-step explanation:

If Alvin got 18 out of 20 on his test we can write this as the fraction 18/20. Now we just need to convert this fraction to percent.

First, we divide the numerator by the denominator. It will look like this: 18 ÷ 20 = 0.9

Next, multiply by 100 to get the percent. Remember that when multiplying by 100 with a decimal u slide the decimal point to the right two times.

We get 90%

Hope that helps u! :)

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value