Answer:
Tip: $2.61
Total: $17.11
Step-by-step explanation:
tip = total cost * rate of tip
Add the tip to the original bill, that's the total.
I hope this helped.
Do you mean xy instead of sy if so i’m pretty sure you would just multiply both of the numbers
Answer:
<em>42/63 = .6 repeating</em>
<em>30/38 = .625</em>
<em>36/60 = .6</em>
<em>57/90 = .63 repeating</em>
Step-by-step explanation:
Nd if I'm wrong then the 2nd nd 3rd one are switched
Answer:
Correct choice is D
Step-by-step explanation:
Given the system of two equations:
Fro mthe first equation
Substitute into the second equation 
instead of y:
Note that 
then the second equation will take look
Answer:
13
Step-by-step explanation:
there is a rule that says that if you add any 2 sides, it should be more than the third. 9+21 is greater than 13. 21+13 is greater than 9. 13 is the only number which if you add 9 to it it will be greater than 21. 12 will equal 21, but it still wont work.
hope this helps :))
