The table shows the amount of money in a savings account after several weeks.
week. savings
1 $125
2 $140
3 $155
4 $170
5. $185
6 $200
a. is the sequence arithmetic or geometric? explain. find the common difference or common ratio.
b. write a recursive formula for the sequence.
c. write an explicit formula for the sequence.

x

step-by-step explanation:

21

jk it's 20

step-by-step explanation:

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)