please answer these i cant copy them bc it doesnt format, so please just use these screenshots.

\fThe speed of a runner increased steadily during the first three seconds of a race. Her speed at half-second intervals is given in the table. Find lower and upper estimates for the distance that she traveled during these three seconds. ft (smaller value) ft (larger value) t (s) 0.5 1.0 1.5 2.0 2.5 3.0 v (ft/s) 6.7 9.2 14.1 18.8 19.8 20 Oil leaked from a tank at a rate of r(t) liters per hour. The rate decreased as time passed, and values of the rate at two hour time intervals are shown in the table. Find lower and upper estimates for the total amount of oil that leaked out. V L (lower estimate) V L (upper estimate) t (h) 0 2 4 6 8 10 r(t) (L/h) 8.8 7.9 6.8 6.2 5.7 5.1\fThe graph of g consists of two straight lines and a semicircle. Use it to evaluate each integ 4 2 y = g(xX) 0 4 7 X (a) g(x) dx (b ) 2 g(x) dx (c ) g ( x ) dxEvaluate the integral by interpreting it in terms of areas. -6 (1 - x) dx Need Help? Read It Watch It Talk to a Tutor 13. + -/1 points SCalcET8 5.2.036. Evaluate the integral by interpreting it in terms of areas. 10 ( # x - 2 ) ax Need Help? Read It Talk to a Tutor1, ( 5 + V81 - x2 ) Ox Need Help? Read It Watch It Talk to a Tutor + -/1 points SCalcET8 5.2.049. If f(x) dx = 31 and g(x) dx = 18, find [3/ (x) + 49(x)] dx. Need Help? Read It Watch It Talk to a Tutor +-/1 points SCalcET8 5.2.050. Find (R(x ) ox if 1 ( x ) = 5 for x