Answer:
x = - 9/10
workings
2/3 x = - 3/5
multiply by 3/2 on both sides
x = - 9/10
You could use the formula a^2+b^2=c^2. So the answer is D.4.
A) the hourly rate is $15
b) each triangle is twice as big as the one before, giving a 1:2 ratio.
c) the slope is 15
4(6)(5)+2(5)h= 150
120+10h= 150
10h = 30
h= 3