Answer:
20 is the longer piece, and 9 is the shorter piece
Step-by-step explanation:
9*2=18
18+2=20
20+9
0.166666666666667 you just have to divide
A is the right one:
a. 3:4=9:12
3×3:4×3=9:12
<span>Given than 1 pound = 16 ounces, we have a total of 8*16 + 10 = 138 ounces which we must devide among the 3 classrooms. This gives us 138/3 = 46 ounces per classroom, or 2 pounds and 14 ounces per classroom.</span>