If 8 (2r-3) - r=3 (3r+2) what does r equal

Which explanation can be used to informally derive the formula for the volume of a cone? A. A cone consists of a circle as a base and triangles for its body.

An office building casts a 90 foot shadow. At the same time of day, a 5 foot woman standing near the building casts an 8 foot shadow. What is the approximate height of the building to the nearest foot?

Is it possible for the exterior angles of a regular polygon to each measure 8 degrees?

How do you do _+-5=-13

8/9 divided. By - 2 2/3

Trevor earns $7.80 an our take-home pay and works 20 hours each week to buy a new laptop computer to take to college that cost $780 how many weeks will it take for church to achieve his goal

What is each sum or difference? (7-2i) + (-3+i) (1+5i) - (3-2i) (8+6i) - (8-6i) (-3+9i) + (3+9i)

Si: P (x) = 3x; R (x) = 2x; calcula : P (R (0))

What is the missing number in 12,24,72,288

Bernice used 1 and 1/4 of a recipe to make tortillas. if the recipe calls for 2/3 cups of flour, how much flour did she use?