A) you have to do it separably so do 57 divided by 19 first which is 3. Then you can do x^5 divided by x^2. When you are dividing indices you take them away so you are doing 5-2 which is 3 So the answer is 3x^3.
b) idk how to do that sorry
Answer:
x = 31
So 2x-7 = 55
x + 4 = 35
Step-by-step explanation:
Answer:
3,5
Step-by-step explanation:
I don't really know about hope this help
Here you want to find a common denominator. 12 is a good one. so you need to find out what the fractions will be if the denominator is 12.
How to do:
2*4=8
3*4=12
2/3=8/12
1*3=3
4*3=12
1/4=3/12
Now add those to see how many girls have brown or blue eyes.
8/12+3/12=11/12
Now do a whole minus 11/12.
12/12-12/12=1/12
So.... 1/12 of the girls do not have brown or blue eyes.
Hope this helps!