HELP ME WITH MATH WILL GIVE BRAINLY TO THE RIGHT ANSWER
THX!


Answer:
1: 660
Step-by-step explanation:
1:
3.8 x 10^2 = 380
2.8 x 10^2 = 280
380 + 280 = 660
2. Fraction
3. Integer
4. A, E, B, C, D.