Someone to help me complete this and explain how to do it, please

42x2 y4 − 41xyz3

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2