Help me with 12 and 13 pls

Step-by-step explanation:

12)  Solution,

For small quadrilateral

Length(l)=3in

Breadth(b)=1in

Area=lxb=3x1=3in²

For big quadrilateral

Base(b)=5in

Height(h)=5in

Area=bxh=5inx5in=25in²

Area of Shaded part=25in²-3in²=22in²

13)Solution,

Length =2cm

Breadth=0.5 cm

Area=2cmx0.5cm=1cm²

Base=4cm

Height=2cm

Area=bxh=4cmx2cm=8cm²

Area of shaded part=8cm²-1cm²=7cm²

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is