7. Determine the number of significant digits in the measurement.
70.00 g
a. 5
b. 4
c. 1
8. Find each sum or difference. Round to the place value of the less precise measurement.
2.13 m + 8.6 m
a. 6.47 m
b. 10.73 m
c. 10.7 m
10. Determine the number of significant digits in the measurement.
60.00 g
a. 4
b. 5
c. 1
(PLEASE HELP, 13 POINTS, WILL MARK BRAINLIEST)