Beginning with Rodney's first month of high school, his father deposits $5 into Rodney's savings account. Each month after the
first month, his father deposits $2 more than the previous month. The total amount deposited in Rodney's account after four years
can be represented using the expression 2 (5+2(n-1)]. How much total money has been deposited?
$2,496
$2,544
$2,640
$2,688

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}