Can anyone help me out with these problems?

Step-by-step explanation:

1) 3/4x = 1/2       2) 2x = 3/11        3) 1 1/2 x = 12      4) 1/5x = 1/6

   x = 1/2 * 4/3         x = 3/11 * 1/2       3/2x = 12             x = 1/6 *5/1

    x = 2/3                   x = 3/22              x = 12 * 2/3       x = 5/6

                                                               x = 4*2

                                                               x= 8

5) 5x = 15/21           6) 2/3 x  = 3/2

    x = 15/21 *5               x = 3/2 * 3/2

    x = 75/21                  x =9/4

    x = 3.5                      x = 2.25

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180 square centimeters

step-by-step explanation:

the answer will be b x² +x-1

step-by-step explanation: