The answer is 23 and 1÷9
First you multiply 4 by 5 and wind up with 20
Then you multiply four by 7÷9.
That gets you 28÷9
You take out all the nines you can from 28, three in this case.
That gets you 27÷9 + 1÷9
Your total thing is 20+27÷9+1÷9
That equals 20+3+1÷9
That equals 23 and 1÷9
Answer:

Step-by-step explanation:
This answer is easily found using the Pythagorean Theorem:

where A and B are the legs, and C is the hypotenuse of the triangle.

Answer:
68
Step-by-step explanation:
The lines on both sides of the number represent absolute value. Absolute value takes any number and turns it positive no matter what.
|-68| → 68
Best of Luck!
Answer:
48
Step-by-step explanation:
72 into ratio of 1 : 2 : 6