D and E. An acute angle is any angle that is less than 90(a right angle). A is an obtuse angle(more than 90). And B + C are right angles. Hope this helps you!
Is this a question on your test or something? I know trying out every number and letter would be difficult. There is a way to solve these types of problems. Ask your math teacher, or someone that knows this or has taught this.
HEY THERE!!
FIRST STEP :- Affonso has 14 fewer dimes than nickels.
SECOND STEP:- Nickels has 21 dimes.
so Affonso has nickels:-
21 - 14 = 7
Hope it helps you.
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22 tables because 22x7 is 154
or you could divide 154 by 7
