Simplify. 3 (2x+4y-2z) + 7 (x+y-4z)

a. 13x+5y-22z

b. - x-19y+22z

c. 13x+19y-34z

d. - x-5y+34z

Ruby is visiting a wildlife center to gather information for her term paper. The center has a circular pond with a diameter of 20 meters. What is the approximate area of the pond?

How is multiplying by a three-digits numbers similar to multiplying by a two-digit number?

Convert 400° to radians. O 40π/9 O 8π/3 O 20π/9 O 23π/6

Tyler buys some tennis balls for an upcoming match. He gives a third of them to his partner, who already had 2 tennis balls. If his partner now has 6, how many tennis balls did Tyler buy?

What is the answer for y? 2 (y+2)

A circle's diameter is 22 inches. What is the circle's circumference

You grew 3.8 inches since last year. If you are 61.2 inches tall now, how tall were you a year ago? Write and solve an equation.

A square and rectangle have the same perimeter. The rectangle is 13 cm long and 7 cm wide What is the length of a side of the square

What do 20% off the regular price mean?

a box is 24cm by 15cm by 10cm. this box will packed with smaller boxes of paper clips which are 6cm by 3cm by 5cm. what is the largest number of boxes of paper clips that will fit in the bigger box?