Answer:
it's b
Step-by-step explanation:
Step-by-step explanation:
27 * 3 = 81
81 * 3 = 243
Each term is 3x the number before it. Therefore:
3 * 3 = 9
The missing number is 9.
Answer:
C
Step-by-step explanation:
80/20 = 4 hours taken by Davie
90 mins = 1.5 hours
Horatio has 4-1.5 = 2.5 hours
Speed: 80/2.5 = 32 miles/hour
Answer: y = 3 or y=7
Step-by-step explanation:
what 2 factors of 21 can equal 10 when added together (1*21- no 3*7- yes)
Factor
y-3=0
y=3
or y-7=0
y=7