15/35 of her attempts were successful.
Answer:

Step-by-step explanation:
1) Cancle -60 on both sides.

2) Simplify 2x + 3x to 5x.

3) Since both sides are equal, there are infinitely many solutions.

<u>Therefor</u><u>,</u><u> </u><u>this</u><u> </u><u>equation</u><u> </u><u>has</u><u> </u><u>infinitely</u><u> </u><u>many</u><u> </u><u>solutions</u><u>.</u>
Answer:
Never
Step-by-step explanation:
Using the formula to find the sum of the interior angles, (n-2) * 180, we can work backwards.
300/180 +2 = 11/3 or 3.666. Polygons cannot have decimal sides therefore your answer is never.
Answer:
tHE FIRST OPTION
Step-by-step explanation:
A colon is representative of a ratio
for example
1:2 is a ratio