Simplify the expression: (4x-3)(x+5)

Find the multiplicative inverse of 8-12i

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

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