What is the sine and cosine ratios ?

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

What is 32+4 x (16 x 1/2) -2 show your work}

The sides of a parallelogram are 24cm and 16cm. the distance between the 24cm sides is 8 cm. find the distance between the 16cm sides