I am an array made with 40 tiles I have an odd number of rows and an even number of tiles in each of my rows the number of my rows plus the number of tiles in each of my rows equals 13 how many rows do I have.

To win at lotto in one state, one must correctly select 4 numbers from a collection of 61 numbers (1 through 61 ). the order in which the selection is made does not matter. how many different selections are possible?

1) A quadrilateral has no pairs of parallel sides. What two shapes could it be?

Which decimal number is larger? 0.0033 or 0.03

About how long would it take to drive 720 miles going 60 mph

Todd has 21 white tiles dnd some black tiles to make a mosaic. The mosaic has a total area of 144 Square centimeters. Each tile has an area of 3 square. How many black tiles did Todd use?

A-2=3/4 solve following equation for a.

What is the greatest common factor of 4?

What is the approximate area of a 70 decree sector of a circle with a radius of 8 inches

How many different triangles can be drawn with the angle measures 90 45 and 45

Estimate the sum of the decimals below by rounding to the nearest whole number. Enter your answer in the space provided. 7.739 1.314 + 2.073