Katie wants to buy a scooter that usually sells for $95.99. The store is having a sale and all merchandise is discounted by 20% What is the total cost of the scooter if Katie pays 7.5% sales tax?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !

Find 63% of 77. a. 0.485 b. 48.5 c.0.818 d.81.8