B. How many millimetres is a 5.7 cm long plank of wood? C. Vikash placed four 50 cm pieces of wood end to end. In meters, how
long are the pieces of wood altogether?

D. Aria cut an 8-metre piece of string into 4 equal pieces.
i) How long is each piece of string in metres?
ii) how long is each piece of string in centimeters?​

i really dont know

step-by-step explanation:

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180