Answer:
y=2x squared -3x-62
Step-by-step explanation:
120 - minimum
140 - 1Q
290 - 2Q
330 - maximum
50% ice cream > 270 calories
....
75% chocolate > 230 calories
<span>10x + 7y = 49
</span><span>10y – x = 70 so x = 10y - 70
substitute </span>x = 10y - 70 into 10x + 7y = 49
10x + 7y = 49
10(10y - 70) + 7y = 49
100y - 700 + 7y = 49
107y = 749
y = 7
x = 10y - 70 = 10(7) - 70 = 0
answer
(0, 7)
hope it helps
The answer is 325, 20 + 205 + 100 = 325