Why is t^2+4z^2 prime

Emily catches the school bus at 7:45 am she needs 30 minutes to get dressed 15 minutes to eat breakfasts, an 10 minutes to walk to the school bus. What latest time Emily can awake in the morning to get to the bus on time?

Ninety people are separated into two groups. The first group is five less than three times as large as the second group. Find out how many people are in each group.

Edwin needs to buy a car, a truck, and a motorcycle for his shipping business. He wants the car to be red or yellow; the truck to be black, white, or silver; and the motorcycle to be green, blue, or orange.

Which has the greater area: a square with a side that measures 17 inches or a 16 1/2 inch by 18-inch rectangle? How much more area does that figure have?

10^10 equals what? I know its easy brainliest!

Three different ways you can add the same addends to make 12

A farmer is enclosing a rectangular area for a pigpen. he wants the length of the pen to be 20 ft longer than the width. the farmer can use no more than 100 ft of fencing.

draw four different triangles, each with a 60 degree angle. Assign the variable d to the first angle measure and the variables e and f to the other two: Look at the triangles you have created.

What happens if the correlation coefficient equals 0? There is a strong negative linear relationship between x and y. There is not a linear relationship between x and y. There is a strong positive linear relationship between x and y.

Determine whether each sequence is arithmetic, geometric, or neither. explain. 7,13,19,25, ...