Consultant a charges 160$ for the first hour and $75 per hour after the first. consultant b charges a flat rate of $90 per hour. consultant c charges $140 for the first hour and $80 per hour after the first. for a five hour session, which consultant offers the cheapest price?

Consultant b

Step-by-step explanation:

160+75(4)=460

90(4)=450

140+80(4)=460

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,