A doorway is 7 1/2 feet tall. How many inches tall is the doorway?

6.07/212

Step-by-step explanation:

90 inches tall

Step-by-step explanation:

1 foot is 12 inches so the equation to get to inches is x*12.    So 7*12=84

But then there is a half of a foot. Meaning 6 inches. So, 84+6

84+6=90

The doorway is 90 inches tall

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

answer: $1794

step-by-step explanation: