1/6 + 3/8 = what does this equal to?

What is sin 7x/4 ? i need on this urgent trig

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5