By replacing you get:
5*7-2*11+3*(-1) = 35-22-3= 10
so the answer is 10.
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That’s pretty easy you just have to basically y=mx+b
Range for boys = 20-8 = 12
Range for girls = 15-3 = 12
Range is same for both boys and girls.
median of boys = 12.5
median for girls = 6.5
Median is greater for the boys.
Hope it helps!
10 because the number in the ones place is less than 5 which means u would go down to 10
Answer: 9
Step-by-step explanation: