The density of copper is 9.86 g/cmº. Work out the mass of the solid copper cuboid in kg.
10 cm
3 cm
5 cm

1st integer x

2nd integer x+1

3rd integer x+2

4th integer x+3

x+x+1 +x+2+x+3 =74

combine like terms

4x+6 = 74

subtract 6 from each side

4x = 68

x = 17

the integers are 17,18,19,20

y-y1=m(x-x1)

y-1=1(x-8)

im super bad at school but u for some reason need to have points to ask questions and you get points by answering so thats all im doing sorry for t r o l l i n g  

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answer is  

a.

5.56

hope you get this right.