the answer is b i did the math it checks out
Answer: b: linear
Step-by-step explanation: add then subtract and last multiply
If ur getting 30% off, then ur paying 70%
70% of 90...
0.7(90) = 63 <== discount price
X = smaller number, y = larger number
x + y = 15.....x = 15 - y
4x = 2y - 60
4(15 - y) = 2y - 60
60 - 4y = 2y - 60
60 + 60 = 2y + 4y
120 = 6y
120/6 = y
20 = y <==== larger number is 20
x + y = 15
x + 20 = 15
x = 15 - 20
x = - 5
Answer:
Cells could not function without them
Step-by-step explanation: