Answer:
47.5
Step-by-step explanation:
by using this formula: A=(a+b)/2 x h
Gabriella x
Her sister x+6
Their mother 2*(x+6)=2x+12
Their aunt (2x+12)+x=3x+12
Answer:
a-2b/ab
Step-by-step explanation:
3a-6b/3ab
Factorize
3(3a-6b/3ab)
= a-2b/ab
True, because 7 + 14 = 21
Answer:5
Step-by-step explanation: