12+2=26
13+3=52
14+4=60
15+5=?

This is different from the first one can someone me

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4