Answer:
40% increase
Step-by-step explanation:
First, find the difference:
161-115=46
Then divide by the past price to get the percent increase:
46/115=.4=40%
We solve this equation : 4y+6=-2
4 y+ 6=-2
4y=-2-6
4y=-8
y=-8/4
y=-2
Therefore: It has one solution .
Step-by-step explanation:
Scale factor
= Side length of big triangle / Side length of small triangle
= 12/5 = 24/10 = 33.6/14 = 2.4.