Answer: A: 21.4
Step-by-step explanation:
40x+30x=315
70x=315
315/70= 4.5 hours
12:00 noon + 4.5 hours = 4:30 pm
Answer:
± 42.25
±6.5^2 = ±42.25
13 + -6.6=6.4 all I did was subtract 6.4 by 13 and I got 6.6 but then turned it negative to solve the equation
