Hello i need with my math homework someone me you

Annwer

In this pic we have two cuboid so

First we get volume of one cuboid then second then add both

Formula of volume of cuboid=l*b*h

Length of small cuboid=6cm

Breadth=5cm. height=3cm then put values v=5*6*3=90cm3

Second cuboid l=16 cm b=10 cm h=9cm

Then put values. V=16*9*10=1440cm3

Then add both of them 1440+90=1530cm3answer

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional