What is the sum of all of the two-digit primes that are greater than 12 but less than 99 and are still prime when their two digits are interchanged?

Brian has 5 times as many quarters as dimes if the total value of her coins was $16.20 how many of each kind of coin did she have

Why does it take 4 copies of 1 tenth to equal 2 copies of 1 fifth?

If the 6th term is 22 and the common difference is six, what would your 15th term be?

Length of a semi truck

Find the product. (2n^2 + 2xt) (2n^2 + xt)

On a piece of paper, use a protractor and a ruler to construct two equilateral triangles: one with a side length of 4 inches and one with a side length of 5 inches. Which statement is true about the two triangles?

Evaluate 12: (-6) (3) + (-2)

What is 20+30*0+1 can you give me a answer

If a man weighs 294 pounds on Earth, his mass on Earth is 133 kilograms . What is this man's weight on the Moon? What is his mass on the Moon? Explain. The men's weight on the Moon is?

A circle with circumference 6 has an arc with a 60 degree central angle what is the length of the arc