What is the answer. Plz help.

312in^2

Step-by-step explanation:

The Surface Area formula for a rectangular prism is:

where l is length, h is height, and w is width.

Take the values given and plug them into the formula to get the answer.

If I helped, a brainliest answer would be greatly appreciated!

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: