You must show your thinking, all of your nothing left out! 1). solve by graphing. y=4x+4 3x+2y=12 2). solve by substition. y=5x-7 -4x+y=-1 3). solve by elimination. 8x+3y=-9 -8x+y=29 4). solve using any method. 3x-y=-6 x+y=2 5). solve using any method. x=y-11 x-3y=1 6). solve using any method. 2x+7y=14 5x+7y=-7 7). tell whether the linear system has one solution, no solution, or infinitely many solutions. you do not need to solve if it has one solution. 15x-3y=12 y=5x-4 8). graph the system of linear inequalities. y< =3 x> -1 y> 3x-3 9). carrie and dave each rent the same moving truck for one day. they pay a fee of x dollars for the truck and y dollars per mile they drive. carrie drives 150 miles and pays $215. dave drives 120 miles and pays $176. find the amount of the fee and the cost per mile.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

360/29

step-by-step explanation: