Liam considers the expression his math teacher wrote on the board, shown in the box. (1) 9
Which is a correct equivalent expression?
1
12
မ
3
o
64

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation:

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

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).