Need help plz and tu

What is the measure of ac? 5 units 13 units 26 units 39 units

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i