He has 40 baseball cards and 10 football cards. which decimal best shows the part of his entire card collection represented by his baseball cards

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)