Answer:
Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit.
Step-by-step explanation:
Constant is the number that cannot change the value
Im not sure..but you can copy it
Answer:cant see it
24
18+6=24 They ate 18 for lunch and Rosa ate 6 more, so you add them togther
