Libby is putting together a piece of furniture. She notices that two of the pieces form a right angle.
If these right angles are cut in half, or bisected, by another bar, what would each angle measure within that angle ?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.