Marian is a sprinter, running short distances on the track team. she wants to find how fast she runs in miles per hour. what units should she start with? a) feet per second b) feet per minute c) miles per minute d) miles per second

  A) feet per second

Step-by-step explanation:

Marian should start with the units used to measure her performance. Very likely, her times will be measured in seconds. Her distances may very well be measured in yards if she runs a 50- or 100-yard dash. If she runs a 440-yard race (1/4 mile), miles per second may be appropriate units to start with.

In modern times, races are measured in meters, rather than feet or yards.

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For this unfortunate question, my guess is "feet per second."

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

but which class are u may know that first