Round $678.25 to the nearest ten dollars. PLS HELP M

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

Explain how you can use the associative property to evaluate (7x50)x4.

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5