The GCF of 28 and 16 is 4 since 28/4=7 and 16/4=4 and 7 and 4 are relatively prime. The gcd of a^3 and a is a. The gcd of b and b^2 is b. Thus, the gcd of the whole thing is 4ab so A is the answer.
Yes it is 15 because 1+2 is 3 3+3=6 6+4=10 and finally 10+5=15
Answer:
50, percentage decreased by 60% (percent) of its value = 20
Step-by-step explanation:
12x²-8x-15 should be your answer