What's the reason for the fourth statement in this proof

Write the smallest numeral possible using the digits 9, 3 and 6

The negative sign can be read as "the opposite of."

What is 11/12 minus 3/20

A new shoe comes in two colors, black or red, and in sizes 5 to 12, including half sizes. If a pair of the shoes is chosen at random for a store display, what is the probability it will be red and size 9 or larger?

A sphere with a radius of 15 cm has the same volume as a cylinder with a radius of 5 cm. What is the height of the cylinder? A) 90 cm B) 120 cm C) 150 cm D) 180 cm

Two numbers are in the ratio 7:8. Find the numbers if their sum is 45.

Is y=9x+3 proportional or non-proportion and why?

A video rental company offers a plan that includes a membership fee of $9 and charges $1 for every DVD borrowed. They also offer a second plan, that costs $44 per month for unlimited DVD rentals.

The area of the two triangles is given by the functions: Area of Triangle A: x2 + x Area of Triangle B: x2 - 3x Which function represents the sum of the areas of the two triangles?

Movies are on sale for 1/4 the original price. If the original price is $20, which expression gives the sale price?