Convert any mixed numbers to fractions.
Then your initial equation becomes:
15
4
×
4
1
Applying the fractions formula for multiplication,
=
15
×
4
4
×
1
=
60
4
Simplifying 60/4, the answer is
15
75x+2=
75x-2=-2. move the 2 to the other side
75x=-2 now divide 75 both sides
75/75x=-2/75
x=-2/75
The answer is A because when you add the angles to get they equal 180. Then just solve for x.
The drawing isn't to scale
50 * 3 = 150 and 150 * 3 = 450
So the answer is b 150