Meaning of rebates in mathematical literacy ​

Step-by-step explanation:

An example of a rebate is a 10% discount on a cell phone at the time of purchase. An example of a rebate is someone paying full price for a cell phone and sending in a form to get 10% of what they paid back. ... Rebate is defined as to give a discount on something, or give a portion of an amount billed back to the payer.

It basically means to lessen or reduct the amount.

  21.3

step-by-step explanation:

multiplying the given equation by c/sin(25°), we get

  c = 9/sin(25°) ≈ 21.2958 ≈ 21.3

we assume "c" is the length of ab, the side opposite angle c in triangle abc.