50% off means half price, so half of 49.98 is 24.99
the necklace now costs 24.99 dollars
Multiply the numerator and denominator by 7×2 = 14 to eliminate the denominators of those fractions:

Rationalize the denominator by multiplying both numerator and denominator by √10:

Lastly, cancel the common factor of 2 in both the numerator and denominator (which comes from 6 = 2×3 and 490 = 2×245):

A. No
B. No
C. Yes(probably)
D. Yes
(Sorry if these are wrong :’) good luck!)
area is found by multiplying length by width
so
26.4 times 12.25 =
and the answer is feet squared