Answer:
(a)-4, -7, -10 and -13.
(b) -46
Explanation:
Given the sequence:

(a) The first four terms are obtained by substituting n=1,2,3 and 4 respectively.

The first 4 terms of the sequence are -4, -7, -10 and -13.
(b)t(15)
Answer:
Yes, Mina is correct
Step-by-step explanation:
Let the triangles be A and B
Given
Triangle A:

Triangle B:

Required
Is Mina's claim correct?
First, we calculate the third angle in both triangles.
For A:


For B:


For triangle A, the angles are: 34, 57 and 89
For triangle B, the angles are: 34, 57 and 89
<em>Since both triangles have the same angles, then by the postulate of AAA (Angle-Angle-Angle), the triangles are similar.</em>
What the regression is a conflict
The answer is $48.60 you just have to multiply the amount of bags times the cost of each bag to get your amount so
15 x 3.24 =48.60
It would then cost $90 because 25% of $120 is $30