Si quieres diseñar un juego mecánico donde la gente suba en un carrito de 15 m de manera completamente vertical llegando hasta arriba del carrito recorre una pendiente de 30 m de longitud qué inclinación debe tener la pendiente con respecto al suelo

Me with these questions , i don’t understand scientific notation!

Find the equation in slope intercept form parallel to y=5x + 2 that pases through (-6,-1)

The price of a box of 15 cloud markers is $12.70. the price of a box of 42 cloud markers is $31.60. all prices are without tax, and the price of the packaging is the same for any size. how much would 50 cloud markers in a box cost? write an equation which will tell the price p for the number n markers in the box.