What is the height of the trapezoid if the area was 26 units

h = 4

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = h( a + b) ← a and b are the parallel bases

here a = 5, b = 8 and A = 26, thus

h(5 + 8) = 26, that is

h × 13 = 26 ( divide both sides by 13 )

h = 2 ( multiply both sides by 2 to clear the fraction )

h = 4

a.)the line for function b is steeper

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x