The equation is y=-5x + 20, x being the hours that go by after 5pm.
We can first find how much the ribbon cost for 1m by setting an equation.
Let $y be the cost for 1m:
0.8y = 5.60
y = 5.60 ÷ 0.8
y = 7
Now that we know 1m of ribbon cost $7, we can proceed to find how much 3.25m ribbon cost by mutiplying the length with the cost:
7 x 3.25
=$22.75
Therefore the answer is $22.75.
Hope it helps!
Answer:
A
Step-by-step explanation:
20.7
If you mean
you can first substitute 
to get
and so
Answer: blank 1: 26 blanks 2: 2
Step-by-step explanation:
If you divide 39 by 6 you get 6.5 which is how many cups is in each pizza. Now you multiply 6.5 times 4 and you get 26. Now you take 13 and divide it by 6.5 and get 2.
