Measurement a is 45
measurement b is 135
283 rounded to the nearest ten is 280
When rounding to the nearest ten look at the number to the right of the place you are rounding. In this case it is the 3. If the number is 5 or higher you go up to the nearest ten. If the number is lower than 5 like it is in this number you round down to the nearest ten.
Answer:
70 could represent the total number of points nolan can earn on the test
Step-by-step explanation:
40,000 cause 4x10 is forty and then add the zeros
