4 1/2 + 5 2/4 i need work shown will give 15 points

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line