8+16 = 24, which is in it's simplest form. (A prime factorization would be

)
Multiply 1000* .75 to get the total amount of ribbon needed.
She would need 750 meters of ribbon
(3-2)-1=0
3-(2-1)=2
Boom! Done
Answer:
Step-by-step explanation:
square of 15 + square of x = square of 21
225 + square of x = 441
441 - 225 = 216
x = 216
To get the answer you need to multiply 1,000 by 7.15 then move your decimal to make it accurate and you should end up with 7150