How can you determine if two algebraic expressions are equivalent

Work out the surface area vof a cube of edge 2m

What is the place value of 7 in 1,709?

What is the longest flagpole (in whole feet) that could be shipped in a box that measures 1ft by 2ft by 12ft

A tin contains 7 chocolate biscuits and 3 plain biscuits. A child reaches into the tin and randomly selects 3 biscuits to be eaten. what is the probability that at least one of the biscuits is chocolate

Whats the answer -8x + 7y - x-6y+4x=

The members of a knitting club are buying supplies for their next meeting. For the club, they need to buy a new patterns book for $3.50. For each member, they need to buy a set of knitting needles for $3.20 and a ball of yarn for $5.40.

If we multiply every observation in a data set by 2, the mean will

3x² - 6x - 24 = 0 0 4,-2 O 7.58,-1.58 O 2.65, 3 0-30, 36

For the dilation with center (0, 0) shown on the graph, your friend says the scale factor is 4. Is your friend correct or no? If he is incorrect, What is the correct scale factor? and what mistake did he likely make?

One of the models of a windmill is 1.2 meters tall and 0.8 meters wide. The width of the actual windmill is 20 meters. What is the height