F(x)=x^2+4 and g(x)=2x+1 find the value of f(-2)g(-2) can someone tell me how to do this

16 more than the product of 5 and p

Four quarts of a latex enamel paint will cover about 200 square feet of wall surface. how many quarts are needed to cover 98 square feet of kitchen wall and 52 square feet of bathroom wall

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22