a sequence is defined by f(1)=3 and f(n)=2*f(n-1) find the first 4 terms of the sequence then write an explicit equation that would represent the sequene

George is 187 cm tall. his son, ralph, is 142 cm tall. who casts the longer shadow. george when the sun is 65° above the horizon, or ralph when the sun is 56° above the horizon? how much longer? (nearest centimeter)

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Mr.zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years