The last one because its like turning it into a fraction but your putting as a desamile or how ever you spell it
If the store decreases its prices by 20%, then ur actually paying 80%
0.80(120) <=== ur expression
lets check..
0.80(120) = 96
120 - 0.2(120) = 120 - 24 = 96 (yep, it matches)
Answer:
corresponding value of equal matrix is equal
a=10
b= -6
c=3
Step-by-step explanation: