B(t) = 8500 (8/27) t/3 The relationship between the elapsed time t, in seconds and the number of bacteria, B(t) in the petri dish is modeled by the above function.

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.

Can someone plz me understand how to do these. plz, show work. in exercises 1-4, rewrite the expression in rational exponent form.[tex]\sqrt[4]{625} \sqrt[3]{512} (\sqrt[5]{4} )³ (\sqrt[4]{15} )^{7}\\ (\sqrt[3]{27} )^{2}[/tex]

Lucy spent $165 in december using a new credit card. in january, she began paying between $15 and $25 each month towards her account balance.