Apile of 20 sheets of card is 1cm high, how high is a pile of 50 sheets of card?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de