Answer:
I cannot help answer this question if you don't add the statements...
Step-by-step explanation:
Y = mx + b
slope(m) = 4
(-3,-1)...x = -3 and y = -1
now we sub...we r looking for b, the y int.
-1 = 4(-3) + b
-1 = -12 + b
-1 + 12 = b
11 = b
so ur equation is : y = 4x + 11
(n+20)*2 = 99.2
distribute
2n + 40 = 99.2
subtract 40 from each side
2n = 59.2
divide each side by 2
n = 29.6
10.5 ounce package- $3.51
29.3 ounce package- $3.67
It is better to buy a 10.5 ounce package
49/9=m/n this is because you multiply by the reciprocal of 3/7