Answer:
16
Step-by-step explanation:
Devaughn's age is three times Sydney's age. The sum of their ages is 68. What is Sydney's age?
Answer:
a. L.B. = 20.5
b. U.B. = 21.5
Step-by-step explanation:
Length is measured 21 cm correct to 2 significant figures
a. Lower bound of 21
= 20.5 < 21
= 20.5
b. Upper bound of 21
= 21 < 21.5
= 21.5
Answer:
2 hours
Step-by-step explanation: