Jack received half the farm but then gave jill one fifth of his half. how much of the original farm did jill get?

Will give brainliest series to sigma notation write the following series in sigma notation. 6+10+14+18+22+26+30 example image shown below.

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.