1.037x + 0.02x + 25 = 30.285 could someone help me withe this plis ?

Although the account is in good standing at this point in time. is this sentence incomplete or complete?

Which sentence uses all its nominative case pronouns correctly? a we live on the same street b them and rachel are good skaters. c the redskins fans in the family are fred and me d have joanne and him played tennis together before?

What is a mechanism by which organisms maintain homeostasis when the level of one substance influences the level of another substance or the activity of an organ.