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Explanation:
While employee compensation and job benefits are the terms that might overlap in meaning, they are usually understood to recognize two different ideas of remuneration.
Employee compensation implies or refers to the salary, annual incentives and longer term incentives like stock options and other equity compensation that he/she works for.
Job benefits as it is defined in ERISA (US law), implies health and welfare plans and pension plans, such as savings and paid time off.
Other benefits include: housing paid by the employer, with or without free utilities; insurances (health, dental, life etc.); disability income protection; retirement benefits; daycare; tuition reimbursement; sick leave; vacation (paid and non-paid); social security etc.
Compensation is purely the monetary aspect.
Benefits are the non-monetary items like heath insurance, even if you have to pay for it partly out of your own pocket.
Solution :
The term 'literacy rate' provides the ability of a person who is from a definite age group can read or write.
a). 
does not determine the rate at which the variable explains another, but it explains the amount the amount of variability in one of the variables as explained by the other variable.
b). The slope given provides an expected improvement but it cannot guarantee the improvement. The value may be less or it could be more also.
The regression model provides the prediction and not the actual values.
