Which category of two-dimensional shapes applies to all three of these shapes?

a.
equilateral

b.
acute

c.
obtuse

d.
isosceles

Which statements are true? see picture

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.