Answer:

Step-by-step explanation:
There is <em>one-and-a-half</em> <em>hour</em> in <em>ninety</em><em> </em><em>minutes</em>,<em> </em>so multiply 6 by 15 to get 90, then whatever is done to the bottom is also done to the top, so you <em>square</em> 6 to get 36.
I am joyous to assist you anytime.
4(x+7)=8x-20
4x+28=8x-20
28=4x-20
48=4x
x=12
Yes 2/4 is less than 2/3 :) I hope this helps