Answer:
10/11
multiply to check on calculator
Answer:
WOAH
Step-by-step explanation:
AWESOME EDUCATION DUDE
Answer:
x = 28
Step-by-step explanation:
The ratios of corresponding sides are equal, that is
= 
( cross- multiply )
8(x - 7) = 168 ( divide both sides by 8 )
x - 7 = 21 ( add 7 to both sides )
x = 28
Answer:
The hidden variable is age.
Step-by-step explanation:
That does not prove that larger shoes cause more studying math or vice versa.
The children with larger shoes are most probably older so they would have done more years of studying than the younger ones.
The hidden variable is the age of the child.
Answer: Option 3
Step-by-step explanation:
