Answer:
4 is your answer
Step-by-step explanation:
in triangle
60+70+13x-2=180 sum of interior angle of the triangle is 180
128+13x=180
13x=180-128
x=52/13=4
Value=amount times cost per unit
paper=10 times 0.55
pencils=6 times 0.75
she bought 10 paper and 6 pencils
cost=10*0.55+6*0.75=$10.00 total
Question: Simplify

.
First off, you <em>never</em> want square roots on the bottom of a fraction, so let's multiply both sides by

to get rid of it. All we have to do from there is simplify!
I uploaded the answer to a file hosting. Here's link:
tinyurl.com/wpazsebu
Answer:
1+2=3
Step-by-step explanation: