Gus wrote the following riddle: I am a number between 30 and 60. My ones digit is three less than my tens digit. I am a prime number, what am I? Explain.

Jack is now seven times old as James. In 5 years, Jack will be five times as old James. How old is James now?

Olivia is making scarves. each scarf will have 5 rectangles, and 2/5 of the rectangles will be purple. how many purple rectangles does she need for 3 scarves?

Insert () into the equation to make each number sentence correct. 7 x 4 - 2 + 1 = 21

A man 6 feet tall walks at a rate of 5 feet per second away from a light that is 15 feet above the ground. When he is 10 feet from the base of the light. a. What rate is the tip of his shadow changing? b.

Which number sentence shows the commutative property of addition? 3 + 0 = 3 3 + 5 = 5 + 3 3 + (8 + 2) = (3 + 8) + 2

Complete the following statement. ___/12 = - 6

if the number of neutrons in an atom are different than the most commonly occurring isotope then this would change the (blank) of the atom. this atom is called a (blank)

The frequency table represents the job status of a number of high school students

Proportional or Non-Proportional? y=-4x+5

If the gradient of a line, C, is 2/3, what is the gradient of a line which perpendicular to C