Answer:
24
Step-by-step explanation:
PEMDAS: 15-14+23
1+23
24
The total angle sum of a triangle is 180°
As such, 180= 78 + 2s +4s
102= 6s
s=17
Answer:
D
Step-by-step explanation:
first of all, what is mode: it is the highest occuring number in a set of numbers.
now since 12 is supposed to be the mean and it occurs twice but 9 also occurs twice so for 12 to be the mode, we must add one more 12.
therefore the answer is 12
None, because you need to make over 15,000 a year to be taxed. And with all that money for one year would not be taxed.