The arithmetic sequences are 3rd one, and 5th one as they are increasing or decreasing by a constant rate of change
Answer:
11
Step-by-step explanation:
15 meals x $0.80 = $12.
$18 - $12 = $6.
If one movie ticket is $3 then she must have purchased 2 with $6.
Part A - 15x0.8=18-x=x
Part B-
15 x 0.8 = 12
18- 12=6
Part C- 2
There are 146 - 84 = 62 girls
ratio is 84:62
simplifies to 42:31