Lori bought some plums and 4 peaches. the peaches cost $1.88 in all and the plums cost $0.33 each. she paid $3.86 in all, not including tax. how many plums did she buy?

Match each function with its rate of growth or decay

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed