I NEED HELP ASAP Which equation is equivalent to: −10r−6=115 A. 10r=−115+6
B. −10r=115+6
C. −10r=115−6
D. 10r=115−6

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Acaterpillar eats 1400\%1400% of its birth mass in one day. the caterpillar's birth mass is mm grams. which of the following expressions could represent the amount, in grams, the caterpillar eats in one day? \

Find the rate of change for the situation. you run 7 miles in one hour and 21 miles in three hours.