Sarah invest money into two simple interest accounts she invest twice as much in an account paying 13% as she does it in an account paying 7% if she earns $115.50 in interest in one year from both bank accounts combined how much did she invest altogether

Which expressions are equivalent to -6 + 3m

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.

Alogical argument that is presented in graphical form using boxes and arrows is called?