Im really struggling. please help me

Heya here is your answer

Step-by-step explanation:

a) 3x = 18

  x = 18/3

  x = 6

b) 2x = 9

   x = 4.5

   x  = 4 1/2 ( in Mixed fraction)

c) x/5 = 7

   x = 7 x 5

   x = 35

d) x/2 = 6.5

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

   X/2 = 6.5 // - 6.5

   X/2-6.5 = 0

    1/2 X -6.5 = 0  + 6.5

    1/2X = 6.5  : 1/2

    X = 6.5/1/2

    X = 13

Hope this answer satisfies you

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

its an acute right triangle

step-by-step explanation: