Answer:
21x + 27
Step-by-step explanation:
Multiply the two brackets together
(3-21)(3+21)
(3)(3)(3)(+21)(-21)(3)(-21*21)
9+63-63-441
- 441 because whenever multiplying a - negative number and a + positive number = - negative number
9-441
= -432
Answer: -432
9 3/7 > 9 1/3
9 3/7 is greater than 9 1/3
Time = distance/speed
time = 2 / 0.1
t = 20 minutes
Answer:
56 coins for 0.50 cents
Step-by-step explanation:
