Martins is going to cover his driveway with gravel

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm

How would you find the height of points on the circle? the topic is trigonometry.