Answer:
she can buy 5
Step-by-step explanation:
x+2x+3<36
3×<33
x<11
the number is less than 11
terms: 3x,+90y,-70
coefficient:3,-90,-70
profit%=
=36%
the sum of the angles in a triangle is 180
33+2c+c-18=180
3c=180+18-33
3c=165
c=165/3
c=55