Найдите сумму a+b, если для двузначного числа ab имеет место равенство ab=2a+4b

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

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.