Which model represents 0.30 + 0.03?
a)a
b)b
c)c
d)d

Write a corresponding real world problem to represent 2x - 125=400

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours