You need to go to school sorry I don’t know I just joined sorry
Answer:
20
Step-by-step explanation:
2g = -3.5x2 = -7
-7 - 5= -12
8 - -12=20
Answer: 
Step-by-step explanation:
Given: Distance traveled by Smith =
mile.
Time taken =
hour
Unit rate in miles per hour = ( Distance traveled by Smith) ÷ (Time taken)


Unit rate = 
Hi,
Perimeter AEDCB=3*10+15+20=65 (units)
Ratio of the similitude r*15=21==>r=21/15=1.4
Perimeter RQPTS=65*1.4=91(units)