The total number of problems she needs to grade is 6.
Answer:
the answer would be 2(3-x)
Step-by-step explanation:
x would be the number that is given and since it says twice than 2 would be outside the parenthesis since the main equation would be inside the parenthesis
Answer:
Step-by-step explanation:
Hhhh
Answer:
17.5
Step-by-step explanation:
Pythagorean Theorem is a^2 + b^2 =c^2
a= 9 , b= 15, c= x
9^2 + 15^2 = c^2
= c^2
c= 17.493 or 17.5 rounded to the nearest tenth
She will have 6 braces left over since 8x8=64 and 70-64=6