8/10 because 10/100 is 1/10 so 7/10+1/10=8/10
Answer:
C PLEASE GIVE BRAINLIEST
Step-by-step explanation:
4.20 ÷ 60 = 0.07
sales tax is 7% and this is your constant of variation
Answer: 60/61
Step-by-step explanation:
Step-by-step explanation:
1: change 'sin²A' and 'cos²B' into (1-cos²A)and (1-sin²A) respectively.
2:open the brackets and put signs accordingly.
3: cancel (-1) and (+1).
4: remaining is your answer.