Which simplified ratio correctly compares 12 yard to 20 feet? a) 3: 5 b)5: 3 c)5: 9 d) 9: 5

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

For each proportion find the unknown number x 1/5/8=×/15

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle