Plas help with these

The answer in the 1st question is 15 in wide.

first to see what we need to multiply the 3 by we need to multiply 3.5, 3.5 x 5 = 17.5

so we know we need to multiply 3 by 5 which is 15 in wide

The answer in the 2nd question is 4 ft x 6

Every 0.5 cm is 6 inches = 1 cm is 1 ft

since the drawing is 6 cm wide the flag will be 6 ft wide

since the drawing is 4 cm long it is 4 ft long

1.2

Step-by-step explanation:

I see for $1.$ $2x+8x+12=0$

$x(8+2)+12=0$

$10x+12=0$

$10x=-12$

x=-1.2