Answer:
61,56
Step-by-step explanation:
1 = 3,24 so 3,24 x 19 = 61,56
Since 25% is 1/4, then 180 times 4 is 720.
720 is your answer.
Answer:
m= 15
Step-by-step explanation:

To solve for m, start by moving the constants (numbers that are not attached to any variable) to the other side of the equation.

Simplify:

Multiply both sides by 9:

Crossing out 3 from the denominator and from 9:
m= 5(3)
m= 15
Answer:
Alberto is incorrect. Perimeter is 42 units.
Step-by-step explanation:
Given:
The vertices of the triangle are 
Perimeter of a triangle of length
and width
is given as:

Here, 
Distance between two points
and
is given as:

So, the length ST is,

Width TU is,

Therefore, the perimeter is given as:
Perimeter =
units.
Hence, the perimeter written by Alberto is incorrect as perimeter is not 18 units bu 42 units.