PLZ HELP PLZ HELP PLZ HELP WILL GIVE

Me find the missing dimension of a triangle height: 7 in., area: 21^2

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

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.