The number 17,31 and 73 are prime numbers reversing the order of the digits to make 71,13 and 37 are also result in prime numbers does reversing the order of the digits of a two digit prime number always result in a prime number explain

Evaluate the expression for a = 4 and b = 3. A-81 B-24 C-36 D-144

Given the graph y = sin (x^4): Is it: 1.) Increasing or decreasing? 2.) concave up or concave down?

Jon buy packages of pen for $5 each, what is the dependent and independent variables in this situation

What is the unit rate of 60miles on 2.5 gallons

Does |w| = - 2 have one solution

Grace and Max worked together on a math problem. they had a rectangle piece of paper that 14 inches long and 11 inches wide they where asked to cut this piece of paper into 1/8 inches wide strips using the length of paper how many 1/8 inches wide

If s (x) = 2 - x2 and t (x) = 3x, which value is equivalent to (s. t) (-7)

Kevin and his sister, katy, are trying to solve the system of equations. Keven thinks the new equation should be 3 (6x-1) + 2y=43, while katy thinks it should be 3x+2 (6x-1) = 43. Who is correct and why

If 4x=32 find the value of 35-5x

On Saturday, a local hamburger shop sold a combined total of 520 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Saturday