The force of friction between the block and surface will decrease.
Answer:
4:5
Explanation:
If M is 20% less than N, then we can think of M as being 80% of N. This gives us a ratio of 80:100 (80% to 100%, 20% less), which can then be simplified to the ratio 4:5.
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Answer:

Explanation:
Let
x -----> the number of miles
we know that
The total miles multiplied by $4 per mile plus the flat fee of $3 must be less than or equal to a
so
The inequality that represent this situation is

Solve for x
Subtract 3 both sides

Divide by 4 both sides

Answer:
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