Hana buys a new dress for $40. how much does she pay if there is a 7% tax

$42.80
$47.00
$2.80
$37.20

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

For the equations below which statement is true ?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.