Arectangle has a height of 4x and a width of 3+1.
express the area of the entire rectangle.
expression should be expanded.

The area of the rectangle = (12x + 4x) square units.

Simplified form = 16x square units

Step-by-step explanation:

Given:

Height of the rectangle = 4x

Width of the rectangle = 3+1.

Area of the rectangle = Length × Width

Here Length is equal to the height of the rectangle.

So, plug in Length = 4x and width = 3 + 1

The area of the rectangle = 4x × (3 +1)

= 4x(3) + 4x(1)

= (12x + 4x) square units

So, the area of the rectangle = (12x + 4x) square units.

We can simplify 12x + 4x because they are like terms.

= 16x square units.

8

step-by-step explanation:

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500