Of great importance to residents of a certain region is the amount of radioactive material present in the soil of reclaimed phosphate mining areas. Measurements of the amount of 238U in 25 soil samples were as follows (measurements in picocuries per gram). 74 6.47 1.90 2.69 .75
.32 9.99 1.77 2.41 1.96
1.66 .70 2.42 .54 3.36
3.59 .37 1.09 8.32 4.06
4.55 .76 2.03 5.70 12.48
Construct a relative frequency histogram for these data.

I’m still confused on how to work the percentages

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants. assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1

Ican interpret and represent the remainder in division calculations sensibly for the context (eg 27.4 in calculating average height in cm: $27.44 if it represents an amount of money) solve the following problems. 15) the wildlife park charges $25.50 dollars per person to enter their park if the park made $15096 dollars today, how many people entered the park? 16) ms adams plus 2,230 other keen runners ran a marathon: between them they ran 94817.5km. how many km did each competitor run?