Anybody ok at geometry that can tutor me in sum way? So helpful fr fr

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)