Solve the equation: 25^2n+1=625

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

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

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries