If by area you mean surface area then the answer is 248 square inches but if you mean volume the answer is 240 cubed inches.
To check for
equivalence, use properties of operations such as the Distributive Property.
Two expression are said to be equivalent if they resulted in the same number
after evaluation of each. You can both expand and factor expressions to
generate equivalent expressions.
5b + r = 30
the cost per item * the number of items sold = the profit
The little square in the top left corner means it is a right angle which equals 90 degrees.
The bottom angle is given as 56.7 degrees.
The three inside angles of a triangle need to equal 180 degrees.
The missing angle = 180 - 90 - 56.7 = 33.3 degrees
