Ineed to find the distance between (3,4) , (7,2)

Step-by-step explanation:

Use the distance formula.

Subtract the x-coordinates and square the difference.

3 - 7 = -4; (-4)^2 = 16

Subtract the y-coordinates and square the difference.

4 - 2 = 2; 2^2 = 4

Add the differences and take the square root of the sum.

16 + 4 = 20; sqrt(20) = sqrt(4 * 5) = 2sqrt(5)

distance = 2sqrt(5)

You can use the distance formula which does the same thing.

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.