Using cell references, enter a formula in cell b6 to calculate monthly payments for the loan described in this worksheet. the annual interest rate is stored in cell b3, the number of payments in cell b4, and the loan amount in cell b2. omit the optional arguments. the result of the formula should be a negative number.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1