Answer:
Step-by-step explanation:
Area is 10x10=100+6x5=130
perimeter is 14+10+10+4+5+6
18 kg times 5 kg would be 90 kg because each window was 18 kg, hence 90 kg
1. H+S=40
2. 19H+25S=922
From 1,
19H+19S=760
Subtract this from 2 to eliminate H,
19H+25S-19H-19S=922-760
6S=162
Solve for S, then use either equation to solve for H.
The range is the highest number in the set minus the lowest number in the set so
84-16=
68
