Roberto comprou 2 cadernos a R$12,40 cada duas borrachas a R$0,80 centavos cada uma meia dúzia de lápis a R$0,60 centavos e meia dezena de canetas a R$2,10. Se Roberto tinha apenas uma nota de R$50,00quanto recebeu de troco?

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

Consider the following equation. 1/2x^3+x-7=-3sqrtx-1 approximate the solution to the equation using three iterations of successive approximation. use the graph below as a starting point. a. b. c. d.

An internet company charges $8.95 per month for the first 3 months that it hosts your web site. then the company charges $11.95 per month for web hosting. how much money, in dollars, will the company charge for 8 months of web hosting?