​A carpenter wants to build a staircase in which each riser has a height ​of 6 inches and each tread has a length of 11 inches. ​ ​Which of the ​following expressions is equal to the stair angle?

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

If there are 3.281 feet in 1 meter, how many inches are in one centimeter

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?