M = 44
b = 48
Equation: y = 44x + 48
Proportional
Positive slope
So you know the merchant made a 15% profit on the pen, so she bought it for a cheaper price. To find the cost of the pen before you have to take the price now, $6.90 and times it by 85%. You do 85% because you subtract the 15% she saved from 100% and you get 85%. So 6.90x.85= 5.865 which rounds to $5.87
Answer:
The opposite of - 5 would be 5
Step-by-step explanation:
Because opposite number only means a number with an oposite sign
Answer B
Explanation: Y=mx+b
M=slope and b=yintercept
Answer:
F=0.4t
Step-by-step explanation:
Find the slope using the formula rise over run or y2-y2 over x2-x1
y2=72 y1=64 x2=25 x1=5
72-64/25-5=8/20=0.4