Answer: the answer is D. the spread is from 1 to 6.
Step-by-step explanation:
Answer:
y = 3
Step-by-step explanation:
According to Euclidian theorem:
y^2 = 3*(12+3)
y^2 = 45 find the root of both sides
y = 3
19 because 1 ten = 10 ones and 9 one plus 10 ones equals 19 altogether