What is the reciprocal of 4?

a.–4

b. -1/4

c. 1/4

d.4

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

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"