Different kinds of sewing machine​

Types of Sewing Machines 

Mechanical Treadle Sewing Machines.

Electronic Mechanical Sewing Machines.

Mini and Portable Machines.

Computerized or Automated Machines.

Embroidery Machines.

Quilting Machines.

Overlocking or Serger Machines.

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

$15 each

step-by-step explanation:

$45/3 children= $15 each