50 points A tractor tire with a 42-inch diameter rotates at 25 rpm. How many feet does the tractor cover in one minute? Round your answer to the nearest tenth.

Will give brainliest sum of arithmetic series (sigma notation) find the numerical answer to the summation given below. (image shown below)

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap