Please help and thank you

4+2 then 3+7 then what is 10x6=60 so 60 is the area

Step-by-step explanation:

if you cut it, you would have a sqaure and a small rectangle, and just use a simple method for this, base times height, and for the sqaure it would be 12, and for the small rectangle all you need to do is subtract to find the side, such as seeing 4 for the side of the square the side, so it would be 3 and 1 which is 3 so 12+3 is 15 the area is 15.

Step-by-step explanation:

step-by-step explanation:

20% of 120 is 24. if you subtract 24 from 120 you get 96

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

                  = 2×(-2)+(-8)×(6)+(-8)×(-5)

                  = -4-48+40

                  = -12

hence, v.w= -12