The diameter of a circle is 7 m. Find the circumference to the nearest tenth

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate