Matthew owes his sister 8.00 he gives her 5.00 he earned in doing chores and then spotted her $3.00 to buy a monster from 7-11. how much does he owe his sister? Pls help!!!

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65