Nancy has 8 pieces of string that are exactly the same length. Which equation represents the total length of string she has, where: p= the length of each piece, and t= the total length of the pieces?

t=8p

Step-by-step explanation:

Basically, you need to determine the total length the pieces by multiplying the length of the string by the number of pieces of string there are. If you were to find the length of a piece of string you could just do p+p+p+p+p+p+p+p but to simplify it you would use the above stated answer.

isn't it a pentagon? sense [3 (triangle) + 4 (rectangle)] - 2 (triangle and rectangle connected) = 5 (pentagon)

we need to divide the number of toy dinosaurs, 156, by the number of brothers, 4:

in order to estimate, we can use compatible numbers:

156 ÷ 4

  ↓

160   ÷ 4 = 40        

the correct answer is a).