Which values represent the first three terms of the sequence: a(1) = 2 and a(n) = -3(a(n - 1))^2
a.) 2, -7, -147
b.) 2, -12, -432
c.) 2, 36, -3888
d.) 2, -12, 36
i know that it might be a bit difficult to understand the above equation when it's typed out, so i included a picture of it written out to make it less confusing. ~ ^_^

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap