What value should go in the empty box for finding the product of 49.273 times 0.68

If f(x) = 3x-2 and g(x) =2x+1 find (f-g)(x)

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?

Mackenzie buys 6 petunias and 8 marigolds. if she plants 2 flowers in each pot, how many pots dose she need?