Start by distributing the 4:
12-8x=15
Add 8x to both sides of the equation and subtract 15 from both sides:
8x=-3
divide both sides by 8 to get the value of x:
x=-3/8
Answer:
If you attach the answers i can help you better
Step-by-step explanation:
Minimum:58
maximum:90
median:70
lower quartile:63
upper quartile:81
interquartile range:18
So 15.90 is almost $16 so you will round up...
and 18 is almost 20
so that would be 20%of $16
so the best estimate would be around $3-$4