PLZZ HELP ME WITHTHSI

c. 492 cubic centimetres

Step-by-step explanation:

the equation for the volume of a rectangular prism is

V = Length × Width × Height

we also have to take into account that there are 2 rectangular prisms in that picture so we have to add the volumes of both of them.

for the one on the bottom, the volume would be

V = 9 × 6 × 8

V = 432 cubic centimetres

now we'll do the one on the top

V = 3 × 5 × 4

V = 60 cubic centimetres

now we'll add up both volumes to get a total amount.

432 + 60 = 492 cubic centimetres

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x