Translate the word phrase into a math expression.

ten less than four times a number

a.
4n – 10

b.
4(n – 10)

c.
10 – 4n

d.
10 < 4n

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Which expression is equivalent to the expression shown?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?