20. B
21. B
22. A
23. C
24. A
25. A
Those should be right? Let me know if you need an explanation.
Answer:
Because the total is 49.77 and the total is the bill + tip, then the tip is 49.77 - 42 or $7.77. To find the percentage, we just calculate 7.77/42 as a percentage to get 1.11/6 = (111/6)% or 37/2 percent or 18.5%
I think it would take her 1/20 of an hour to do each chore and i dont know what point a is .
Answer:
x=7
Step-by-step explanation:
In order for this figure to be a rhombus, the interior sides have to add up to 180, and the angle not given by an expression has to be 90.
90+8x+7+3x+6=180
Combine like terms
90+11x+13=180
103+11x=180
Subtract 103 from both sides
11x=77
Divide both sides by 11
x=7
Yes it is an exponential function as the value of y increases exponentially as x increases.