Answer:
Part 1) The linear equation is 
Part 2) if he has 90 protein bars left, then 52.5 days have passed
Step-by-step explanation:
we know that
The linear equation in slope intercept form is equal to

where
y is the number of protein bars left
x is the number of days
m is the slope or unit rate
b is the y-intercept or initial value
In this problem we have
The slope is equal to
----> is negative because is a decreasing function

substitute
---> linear equation that represent this situation
If he has 90 protein bars left
so
For y=90
substitute in the linear equation and solve for x

therefore
if he has 90 protein bars left, then 52.5 days have passed
Answer:
(A)3x+2
(D)2(x+1)+x
Step-by-step explanation:
Given the expression: x+x+x+2
x+x+x+2=3x+2
Option A is 3x+2 which is equivalent.
In Option D
2(x+1)+x=2x+2+x=3x+2
Therefore, <u>Options A and D</u> are equivalent to the given expression.
Answer: $6.49 for 1 book
Step-by-step explanation: You won't fail your assigment
Answer:
Gain perceent= (SP-CP)/CP *100
By selling 48 metres of cloth I gain the selling price of 16metres.
Let SP of 48m cloth = 48x
Gain = 16x
CP of 48m cloth = 48x - 16x = 32x
Gain % = gain/CP × 100
Gain % =32x/16x × 100 =
i.e200% his profit is 200 %Step-by-step explanation: