id have to say the best Answer Choice is A. there is an infinite number of solutuons. i hope this helps.
Step-by-step explanation:
Used desmos, it is a graphing app that is easy to used
Answer:
2.5
Put the values in place of the corresponding variables and do the arithmetic:
ab - 0.5b = (1)(5) -0.5(5) = 5 - 2.5 = 2.5
