Which is more economical: purchasing economy size at 3kilograms for $3.15 or purchasing the regular size at 840 grams for $.60?

If qrs tuv, which congruences are true by cpctc? check all that apply. a. q u b. rs tu c. qs tv d. qr tu e. s v f. r u

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.