The radius of a circle is 3.9 in. Find the circumference to the nearest tenth.​

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?