Answer:
3.12
Step-by-step explanation:
A..........................
Answer: 1) is 20
2) is 75 minutes
3) is estimated 63
Step-by-step explanation:
1) 200×90=18000÷100=180 and 200-180=20
2) 45÷12=3.75 which is the unit rate of minutes per question and 3.75×20=75 minutes
3) to long to explain and I don't know number 4
Answer:56
Step-by-step explanation:
.8 times 280 = 224 280-224=56
7 7/8= 63/8
3 1/4= 13/4
63/8 -13/4 we bring to the same denominator
(63-26)/8= 37/8