Isaac bought seven new magic cards to add to his collection this year the next day he gave half his entire collection to his friends there are now only 21 cards left how many cards did he start with

What does it mean to "square a circle"?

5 boys made s doughnuts. they sold the doughnuts for $3 each and shared the money equally. how much money did each boy get?

A rectangular field has length as 25m and area as 225 m2. Aaron used 4 (x - 2) metres of rope to fence this rectangular field. Find the value of x.

Does a semi circle have a greater area than a rectangle?

ms. Omar runs the school tennis club. she has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are 3 tennis rackets. Draw a model to show the ratio of tennis balls ti tennis rackets.

If you have a bag of marbles with eight of them blue 4 are yellow and six green. If you want to make the probability of selecting yellow marble 30%, how many would you add to the bag?

If ax+x^2=y^2-ay what is a in terms of x and y?

Jesse wants to build a wooden chest with a volume os 8,100 cubic inches. the length will be 30 inches and the width will be 15 inches. how tall will the chest be?

Why is it that I can't see the answers to questions?

A garden is constructed in the shape of a right triangle with legs of length 10 feet and 12 feet. Find the area of the garden. A) 44 square feet B) 60 square feet C) 120 square feet D) 240 square feet