Calculate the area. 67 points

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

What is 10+10+20 about the origin the square root of a triangle.

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation 0b is the intensity of a given sound and lo is the threshold of hearing intensity. what is the intensity, in decibels, [l(db)], when 1 - 10"(%)? use a calculator. round to the nearest whole number a. 15. b. 32 c. 320 d. 737