14 + 28 : (-7) • (-2)

A 4-column table with 5 rows. The first column is labeled age (years) with entries 1, 2, 3, 4, 5. The second column is labeled given value with entries 15, 12, 9, 5, 4. The third column is labeled predicted value with entries a, 11.9, c, 6.1, 3.2.

How to find the perimeter of a triangle with one side missing?

On Saturday sally works 8.25 hours and earns $6.50 an hour. Michelle work 6.75 hours and earns $8.95 an hour. Who earns more? How much more?

4x - [ x + 2 ] + 6 = 2 [ 3x + 8 ]

1. Long distance phone calls cost 75 cents plus 15 cents for each minute. Write and solve an expression to calculate the cost of a 9-minute phone call.

The sum of two integers is 29. If one of the integers is 7 less that the other, what are the integers?

A huge ping-pong tournament is held in Beijing with 32,768 participants at the start of the tournament. Each round of the tournament eliminates half the participants.

Solve the following system of equations. 4x + 3y + z = - 10 x - 3y + 2z = - 8 11x - 2y + 3z = - 38

Name which property is shown in 5 · (-6) · 2 = 2 · 5 · (-6)

Right now i have $6.75 in my piggy bank. if i add $2.25 per week to the bank, and i never take out any money, then how many weeks from now will i have $45.00 in my piggy bank?