Darshon had 85% of a dollar. at the school store he spent 2/5 of a dollar on a pen and another 0.20 on a pencil. how much money did darshon have after going to the store

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)

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line