Answer:
Step-by-step explanation:
|E| + |F|
|1| + |-10|=11
Answer=11
If x∆y = 3x - y², then
5∆1 = 3×5 - 1² = 15 - 1 = 14
and
14∆6 = 3×14 - 6² = 42 - 36 = 6
So (5∆1)∆6 = 6.
$52 was the amount Lisa had originally if you take 3/4 and divide it by $39 you get $52.
By their increase or decrease
