Answer:
A
Step-by-step explanation:
work out price of each for one bottle
A) $12.60 ÷ 7 = $1.80
B) $10.98 ÷ 6 = $1.83
C) $18.10 ÷ 10 = $1.81
D) $16.38 ÷ 9 = $2.82
we can clearly see that A is the cheapest
BC² = 10² + 30²
the answer is D
No, Rays go one way only since a point block te other way. Otherwise it wont be a ray :)
not sure if this is what you mean but you could do 500+49 or 510+39