Hello. My son who's in 8th grade needs help solving for x without the use of the Pythagorean theorem. Subject is similarity. Thanks to all.

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

Acircle has a circumference of 28.36 units what is the diameter of the circle

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