Does reversing the order of the digits of a 2 digit prime number always result in a prime number

3 x 5 x 7 is the prime factorization of what number?

A machine adds metal bands called ferrules and erasers to one end of a pencil. It takes the machine 2.5 hours to add ferrules and erasers to 4,200 pencils. How many pencils does this machine process per minute?

What is 27/22 simplified

Make a ten or hundred to add 339+123

Determine the solution set of (x + 2) ^2 = 36.

Investment a starts with $1000 and increases its value by $80 each week. Investment b starts with $2000 and loses $50 of its value each week. After how many weeks will the two investments have the same value?

Ginger likes to ride her bicycle and she wants to ride 30 miles the first day, 55 miles the second day and 100 miles the third day. How many miles will she ride during the three days?

2/17 = x/102 solve the proportion

What is the y-intercept of y = 50 - 1?

What is the value of 34258 and 47163