Which of these expressions represents the product of two rational numbers being
rational?
o2.5 -
оо. 49
oo v34
о 35 - 49
o

Use continuity to evaluate the limit. lim x→16 20 + x 20 + x step 1 consider the intervals for which the numerator and the denominator are continuous. the numerator 20 + x is continuous on the interval the denominator 20 + x is continuous and nonzero on the interval

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.