Ashley has x dollars. She spends $23.50 on a birthday gift. She decides to keep 0.4 of what she has left, which is $13.80. How many dollars did Ashley have originally? Write both the equation you used and the answer.

She has $58 initially

The equation is;

0.4(y-23.5) = 13.8

where y is the original money she has

Step-by-step explanation:

Let the amount she has originally be $y

she spends $23.50 on a birthday gift

what is left will be;

(y- 23.50)

She decides to keep 0.4 of this and this is equal to 13.8

Thus;

0.4(y-23.5) = 13.8

y- 23.5 = 13.8/0.4

y- 23.5 = 34.5

y = 34.5 + 23.5

y = $58

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk