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see explanation

Step-by-step explanation:

• Parallel lines have equal slopes

• The slopes of perpendicular lines are the negative reciprocal of each other

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 7x + 2y = 7 into this form

Subtract 7x from both sides

2y = - 7x + 7 ( divide all terms by 2 )

y = - x + ← in slope- intercept form

with slope m = -

Thus

slope of perpendicular line =

slope of parallel line = -

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

160 cm

step-by-step explanation:

you have to add all the sides together