Answer: a)
20 shirts | 349 + 20(4.8)
40 shirts | 349 + 40(4.8)
60 shirts | 349 + 60(4.8)
b) Tn = 349 + n(4.8)
c) (1000 - 349)/4.8 rounded down.
B involves direct variation.
y and x are directly proportional.
Y axis is 1.5 and x axis is 1 and make them meet in the middle and add and repeat the process
Angles 1 and 3 are supplementary
It is not triangle because the one side of triangle should be smaller than the other two sides
Let's check
6+11=17
17<19
Or
11+19=31
9<31