Answer:

Step-by-step explanation:
we know that
The minute hand of a clock will make one rotation in one hour
noon to
p.m is equal to 
so
by proportion
Find how many rotations will make in
hours

Answer:
y = -19
Step-by-step explanation:
Answer:
You can sell at least 40 phones each week.
Step-by-step explanation:
Given that:
Weekly base salary = $150
Earning on each phone = $20
Maximum amount that can be earned each week = $950
Let,
m be the number of phones.
20m + 150 ≤ 950
20m ≤ 950 - 150
20m ≤ 800
Dividing both sides by 20

m ≤ 40
Hence,
You can sell at least 40 phones each week.
First solve for parenthesis
73 + 27 = 100
x - 100 = 400
Isolate the x. Add 100 to both sides
x - 100 (+100) = 400 (+100)
x = 400 + 100
x = 500
500 is your answer for x
hope this helps