Answer:
5.43×10^14 or

Step-by-step explanation:
Scientific notation, the number must always be less than 10, in this case 5.43. The exponent represents how much times I moved the decimal point to the left.
Answer:
$0.50 x 3 = $1.50
Step-by-step explanation:
Answer:
20 for de first one and answer (B) for the second.
Step-by-step explanation:
20 for de first one and answer (B) for the second.
hope this helped;3
4, 10, 4, 10. 10*4 gives area of 40. 10+10+4+4 gives 48 as shown in question