1. 6x-15
2. 18x-55
3. 7.2x+2.3y-2
Answer:
12-157.5 13-6ft
Step-by-step explanation:
the first one just look up 65% of 450 and minus the number you get by 450
the second one do the butterfly method

the heights on top and shadows on bottom
12x=72
x=6
Answer:
x = -52
Step-by-step explanation:
-4x-46+46=-3x+6+46
-4x=-3x+52
-4x+3x=-3x+52+3x
Answer:
B
Step-by-step explanation: