Walter has 7 posters. Cecilia has 5 posters. Draw a model that shows the ratio of the number of Walter's posters to the number of Cecilia's posters.

What is the prime factorization of 195

What is the absolute value of the complex number -4-sqrt2i

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?