I need the answer for my kid

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,