Can someone help? I don’t understand:,)

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

Write each of the following numerals in base 10. for base twelve, t and e represent the face values ten and eleven, respectively. 114 base 5 89t base 12

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2