Write 18 1/4 as a decimal,

18.25

Hope this helps :)

Step-by-step explanation:

The first thing you do is make your fraction improper

4 * 18 = 72 + 1 = 73

So now your fraction looks like this

73/4

but it's still equal to 18 1/4

What you want to do now is divide your fractions numerator and denominator

73 divided by 4 equals 18.25

A simpler way is to remove your whole number from the equation

1/4

then turn that into into a decimal

.25

and add it to 18

18.25

x = 16

Step-by-step explanation:

See the attched figure

We should know that, one of the properties of the rhombus is the diagonals bisect the angles of the rhombus.

Given:

m∠ABC = 84  and m∠ABE = 3x − 6

So, m∠ABE = 0.5 * m∠ABC = 0.5 * 84 = 42

∴ 3x - 6 = 42

Solve for x

3x = 42 + 6 = 48

x = 48/3 = 16

∴ x = 16