Michelle collects us, canadian and mexican stamps. in her collection 80% of the stamps are u. s. and mexican stamps. there are 3 times as many u. s. stamps as mexican stamps. what percent of michelle's collections is made up of u. s. stamps?

The highest common factor of 132 and 220

What is the order of operations for 2 + (3 - 9) ÷ -3 · 4 in number order 1. subtraction 2. division 3. addition 4. multiplication

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%