Step-by-step explanation:
a)
8÷2=4
12÷3=4
27÷9=3
•it does'nt always take the same amount of time to serve each customer .
•10×3=30
b)
according to the question
2=18 point
4=36 point
8=72 point
18=9×2
36=9×4
72=9×8
so 1dollar =9point
•each dollar spent appears to earn the same number of point
•because 81=9×9, it costs 9 dollar
15/20...divide numerator and denominator by 5 = 3/4
Answer:
2804
Step-by-step explanation:
2504 + 140 + 160 = 2804 (hint: add the 140 + 160 first. It sums up to 300 which is easy to add to 2504)
Answer:
B
Step-by-step explanation:
Answer:
Step-by-step explanation:
It's 75° b/c of complementary angles.... understand? :∫