Write the expression 7b - 3(b - 1) in simplest form

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.

Answer! if you don’t mind, can you explain