12.) Habia 21 manzanas en un canasto. Ricardo se comio 6 el lunes. Le quedan 3 dias antes de ir al supermercado. Cada dia se come la misma cantidad de manzanas. Resuelve 3d + 6 < 21, luego explica tu solucion.​

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Write the expression 7x^3-28xy^2 as the product of 3 factors