Sagar sold a watch at Rs.400 that he had purchased at Rs.500.what is his percentage loss?
a. 15%
b. 20%
c.25%
d. 30%​

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Write the expression as a single natural logarithm. 2 in a - 4 in y