Answer:
47.5%
Step-by-step explanation:
You have to first subtract 80 and 42 to find the decrease first. This is 38. Now, you have to divide this by the original number which is 80. So 38 divided by 80 is 0.475.
Now multiply this by 100.
You can easily move the decimal point to the right.
So you would get 47.5%
Hope this helped!
You may recall that you can't take the square root of a negative number (if you want a real number). So, the area under the square root, also known as the radicand, must be zero or positive. This is how we restrict the domain.
We write the inequality

.
B
-4 if you have any more equations like this you can use this app called photomath
Answer:
-2.31
Step-by-step explanation:
9/7 multiplied by (-9/5) is -2.31.
You first have to change the denominator into a common factor that each fraction has in common.
Then you just multiply them to get -2.31.