Michael is x years old in 10 years old ,he will be 23 years old. a.23-x=10; x=-13 b.10-x=23; x=13 c. x-10=23; x=13 d. x10=23; x=13

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)