What is the additive inverse of 29?

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?