Answer:
Step-by-step explanation:

b.
an=an-1+3
C.
when x=15
y=3×15-2=45-2=43
a15=43
Answer:
-59
Step-by-step explanation:
14.1666667 times. Rounded- 14.167 pr 14.17
<u>The interpreter attended </u><u>22 parent-teacher conference</u><u> and </u><u>5 school related assembly</u>
To solve this problem, we would write out two set of linear equations.
The data given on this problem are
- parent-teacher conference = $35.50
- school related assembly = $42
- The total number of engagements = 27
Let x represent the number of parent-teacher conference
let y represent the number of school related conference
<h3>Equations</h3><h3>

</h3>
From equation (i)

Put equation(iii) into equation (ii)

Put y = 5 into equation 1

From the above calculations, he attended 22 parent-teacher conference and 5 school related assembly.
Learn more on linear equations here;
brainly.com/question/4074386