Use averaging to estimate the value of n(15). а. 15.4 b. 18.2 с. 23.5 d. 20.7

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.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!