Find the circumference of a circle with a radius of 63mm

Write a fraction that is greater than 1/3 and is less than 1/2.

At the end of the year, cars made in the current year are marked down to make room for next year's models. One particular model had a sticker price of $49,180 when it was new. It has just been marked down by 25%.

3 friends share 12 crayons. Which model shows a way to share the crayons so that each friend gets an equal number of crayons?

Find the percent of markup. 37.00 to 49.00

3.2*8.7*-1.1 show work

0.17098445595 to the nearest percent

Which one is bigger 0.7 or 7/9

Joann wants to hang a wallpaper border around the top of her living room walls. The room is 13 ft. by 15 ft. How much border must she purchase?

A zealous geologist is sponsoring a contest in which entrants have to guess the age of a shiny rock. He offers these clues: the age of the rock is formed from the six digits 2, 2, 2, 3, 7, and 9, and the rock's age begins with an odd digit.

Which is greater: 25% of 15 or 15% of 25? Explain your reasoning using algerbreaic representations or visual models