If AB←→ and DC←→ are perpendicular, then ∠AEC and ∠BEC are what? The answer choices: right angle or vertical angles
supplementary or complementary

right angle and complementary

Step-by-step explanation:

Complementary angles

Explanation:

Complementary angles. Because  ∠EFB = 90° ⇒ ∠EFA = 90°

∠AFC + ∠EFC = 90°.

Hence, the correct answer is complementary angles.

Step-by-step explanation:

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt