Answer:
<h2><u>7</u>x - <u>7</u>y + <u>21</u> </h2>
Step-by-step explanation:
7(x - y + 3)
=> 7 × x - 7 × y + 7 × 3
=> <u>7</u>x - <u>7</u>y + <u>21</u>
Answer:

Step-by-step explanation:

Number one is 68 you have to divide on this download photomath its better because all you have to do is take a picture and it shows you how to do it ;)
Half of the distance from one side, through the middle, to the other side.
circumference: 3.14*radius*2