30 × 5 = 150
150 - 110 = 40
40 ÷ 2 = 20
So 20 kids brought their own lunch
Hope this helped. Have a great day!
Answer:
B. y= 1/2 x - 3
Step-by-step explanation:
base equation: y= mx+ b
slope(m) equation:
y2= -1 y1= -3
x2= 4 x1= 0

y- intercept: -3
found by taking the y from (0,-3)
The student didn't make any mistake. The slope of the line between those points is 3/8.
1/ 1/5
1/1÷1/5
1/1×5/1
5/1=
5