Help me please my test is gonna end in 30 minutes

i believe it is -7 degrees. 13-20=-7

pro tip: "big minus small takes the sign of the big" is how i remember negative numbers.

20 is the bigger than 13, and when you subtract them you get 7. 20 has a negative, so 7 takes "the sign of the big", making it -7

The answer is -7

Step-by-step explanation:

Because if you started at positive 13 and it dropped 20 degrees, it would be negative 7.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions