Multiplying mixed numbers 1) 2 2/3 x 4 1/2= 2) 4 1/5 x 3 1/2= 3) 4 8/9 x 3 1/2= 4) 4 3/4 x 3 2/5= 5) 3 1/2 x 3 3/10 = 6)4 2/3 x 2 2/5= 7) 4 2/3 x 2 2/5= 8) 3 2/5 x 2 1/3= 9) 4 2/9 x 2 1/2= 10) 3 1/2 x 4 7/10= 11) 3 1/10 x 4 6/7= 12) 3 1/6 x 4 1/2= 13) 3 1/3 x 4 1/4= 14) 4 5/8 x 2 1/2= 15) 3 1/2 x 4 2/3=

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)