Given that R
=
2
x
+
2
y

Find
y
when
x
=
9
and
R
=
29

Give your answer as an improper fraction in its simplest form.

y=11/2

Step-by-step explanation:

r = 2x + 2y

29=2(9) + 2y

29=18 + 2y

11 = 2y

11/2 = y

$30

Step-by-step explanation:

first, take 25% of 120

then, turn the percent to a decimal (move the percent to the left twice, equals 0.25)

0.25 times 120

this equals 0.3

then turn the decimal to a whole number by moving the decimal to the right two times

0.3= 30

$30