How to solve 4x+7=15

What is the perimeter of a regular hexagon with a side length of 12 inches?

Write 0.4% as a fraction in simplest form.

Gary can hike on level ground 3 miles per hour faster than he can on uphill terrain. Yesterday, Gary hiked 10.25 miles, spending 3 hours on level ground and 2 hours on uphill terrain. What is Gary's average hiking speed on level ground

Which expressions are equivalent to 6g - 18h? the answers they give me are A) (g-3) • 6 b) 2• (3g-18h) c) 3 (2g-6h) d) (-g-3h) (-6) e) - 2 * (-3g+9h)

Jessica is choosing a 3 letter password from the letters A, B, C, and D. The password cannot have the same letter repeated in it. How many such passwords are possible?

The floor of Catelyn's room is 137 1/2 square feet. The walls are 8 1/2 Feet tall. What is the volume of Catelyn's bedroom?

What is the value of the 3 in the

Factor 3x (y-4) - 2 (y-4)

Jp has two jobs. He makes $12 an hour as a bus boy. He makes $21 an hour working construction. He works 52 hours and makes $966. How many hours did he spend at each job?

Which of the following statements is true? The product of a positive and negative fraction is negative. The product of two positive fractions is negative. The product of two negative fractions is negative.