Answer:
9.7 rounded to 10
Step-by-step explanation:
I'm pretty sure 10 would be the answer, because since they are similar triangle you would cross multiply. So you would do 
, you would the cross multiply 23×17 and 40×X. You would then have 40X=391, so you would divide 391÷40, so X=9.7 or 10
Answer:
B
Step-by-step explanation:
umm...it's kind of obvios if you look at the lines
Answer:
The answer is 40%
Step-by-step explanation:
You divide 8 by 20 and you get a decimal, 0.4, make that into a percentage and you got 40%
$18.00 if you move the decimal one place to the left 10% tip would be $1.80,
multiply $1.80 x 2 = $3.60 which is 20% for the tip.
$18.00 + $3.60 = $21.60 divide by 4 people = $5.40 per person
