Which of the following quadrilateral have digonals that are always perpendicular to each other? check all that apply.
a. rhombus.
b. rectangle.
c. square.
d. parallelogram.

P= price tax is 4% added to the price. which expression shows the total price including tax?

Ben frank is an electrician who installs lighting fixtures. he charges (in dollars) his clients 15h+40f15h+40f where hh is the number of hours worked and ff is the number of fixtures installed. how much does ben frank charge when he works 77 hours and installs 99 fixtures?

Acertain group of women has a 0.640.64% rate of red/green color blindness. if a woman is randomly selected, what is the probability that she does not have red/green color blindness? what is the probability that the woman selected does not have red/green color blindness? nothing (type an integer or a decimal. do not round.)