Use the properties to expand the expression as a sum or difference, and/or constant multiple of logarithms. (Assume all variables are positive)

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°