Mark has 18 and Don has 77 number of marble to sell.
Let’s say Mark has x number of marble and Don’s marble number is y.
According to this problem we have,
Y = 4x +5
And x + y = 95
Or, x + 4x + 5 = 95
Or, 5x = 90
Or, x = 18 and y = 77
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Answer:
first one
Step-by-step explanation:
if you plug the inputs into the equation, you can see that all of the outputs match the ones in the first chart
0 --> 2
1 --> -1
2 --> -4
Answer:
A
Step-by-step explanation:
y = x² - 6x - 4
(x - 3)² - 3² - 4 = 0
(x - 3)² - 13 = 0
(x - 3)² = 13
x - 3 = ±√13
x = 3 ± √13
For 80 guests you will need 80/10 = 8 times more than for 10 guests:
8*9.50 = $76
Refreshment for 80 guests costs $76.
Find out smarty don’t cheat
