The shelf should sell for $235.20.
Marking the price up by 60% means taking 160% of the cost:
160% = 160/100 = 1.6; 1.6(147) = 235.20
        
                    
             
        
        
        
Answer: 
7 cups of flour
reason:
to find how much flour is needed, first you need to combine the two fractions. 
to add the fractions, you first have to find a common denominator, which in this case is 15
multiply 1/5 by 3 to get 3/15, and 2/3 by 5 to get 10/15. combined, this is 13/15
since the answer is looking for the best estimate, you take the overall amount of flour, which would be 6 13/15, which is closer to 7 cups than 6
(I may be wrong this is just how I did it)
        
                    
             
        
        
        
Let's calculate the value of angle A and B
sin(A) =-4/5 → sin⁻¹(- 4/5) = A  →  A = - 53.13
cos(B) = -5/13 → cos⁻¹ (- 5/13) = B  → B = 112.62
tan (A+B) = sin(A+B)/cos(A+B)  with A+B = -53.13 + 112.62 = 59.49
tan (A+B) = sin(59.49)/cos(59.49) = 0.86154/0.507688 = 1.6969.
(Answer H = 56/33 = 1.6969)
        
             
        
        
        
Answer:
327.4
Step-by-step explanation:
All you have to do to simplify a number written in scientific notation is to move the decimal place to the left (if the number is negative) and to the right (if the number is positive).