3x - 7x =4 i need you to me solve and work it out

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss

Use the given information to determine the exact trigonometric value.