20 points and crown determine the product of each set of polynomials (2x-3)(4x+5)=0

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck