Answer:
2nd one i think
Step-by-step explanation:
Answer:
The new ramp must be 54 inches long than the old ramp to meet the requirement of the new law
Step-by-step explanation:
Old height to length ratio is:
h : l = 2 : 15.
Height of old ramp h = 12
Length of old ramp can be find out by putting h = 12 in the above ratio

Length of old ramp = 90
Height to length ratio by current law:
h : l = 1 : 12
Height will be the same i.e. h = 12

Length of new ramp = 144
How much longer the new ramp should be to meet the new ratio law:
New length - Old length = 144 - 90 = 54 inches
Answer:
the exact would be 3.75 but the rounding would be 4 or 3.5
Step-by-step explanation:
Option B is correct option.
Step-by-step explanation:
We need to solve the inequality: 7 − 9x − (x + 12) less than or equal to 25

Solving:



Add 5 on both sides:


Divide both sides by -10 and reverse the inequality:

The number line is shown in figure attached.
Option A is correct.
Option B is incorrect because x cannot be less than -3
Option C is correct because −3 less than or equal to x is -3 ≤ can be written as: x≥-3
Option D is correct because when x is greater than or equal to the circle is closed and greater values are on right side of the number line.
So, Option B is correct.