How many elements are there in a power set (a) A = {ϕ}

(b) B = {a, b}

(c) C = {l, m, n}

(d) D = {4, 9}

There are 4 cups in a quart and 4 quarts in a ganon.jug of water? . how many cups are in a 5-gallon jug of water?

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

What is the lcm of 16 and 40 ? 24 and 40 ?