The percentage increase from 15 to 45 .that what got but I don’t know what to do next

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Is the underlined participial phrase correctly placed or misplaced? i smelled each and every flower strolling through the garden. a. correctly placed participial phrase b. misplaced participial phrase