Can you help with 7 and 8 please. I need help

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.

Find the distance between (0,5) & (-4,2)