Answer these 7 calculus questions from the pictures please

Rewrlte the statement In mathemluml Manon. (Let n be the number afaeee of Bangkok flu and r be t'me.) There are mrrenv 400 (mes af Eangbouk flu, and the number [s gmlng try 40 new cases every mnndr. ale a Need Help? i Rewrlte the statement In mathemluml Manon. (Let R be the annual revenue at your mmpany, q heme annue' sales, and r be tlrne.) The Innull revenueofme tledye T'shrrr uperet'en I: mrmnv $6,000 but I: deaeu'ng by 3700 end! veer. Haw feet are annua' sales dungmg? R n' dt Rewrlte the question In malemam' notetlen. a nd dqldt. nd dddy. nd may. a nd writ. g and dqm- Need Help? i Rewrlte the statement [n mathemlml maxim. (Let y be the 'stenm from the tap Mle \\edder tn 'leflenr, x hethe met-nu fml'n the base efthe ladder In the we\ [0H webaseignnet (5| [E m iii The area ofa drcular sumpat is growing at a rate of 700 km'lsec. (a) How fast is the mdlus growing at the lnstant when lt equals 10,000 kilometers? HINT [See Example 1.] (Round your answer I30 three decimal places.) km/s (b) How fast is His radius gruwlng at Ihe instant when ma sunspot has an area of 499,900 square: kiiarnstais? HINT [Usa HIE arsa rarrnuia to data-mine the radius at that instant.) (Round your answa- bu raur deu'rnal ulaaas.) km/s Need Help? _' A mherlcal party balloon Is bang inated wiih helium pumped In at a rate of 10 cubic feet tier minute. How fast is lire radius growing at the instant when the radius has reached 1 ft? HINT [See Example 1.] (The volume nfa sphere of radius ris V= g' Rauno your answer to two dedmal places.) Mmln Need Help? _' A rather imsy spherical balloon ls designed to pop at the instant its radius has readied 6 centimeters. Assuming the balloon is filled with helium at a rate of 15 whit: oeniimeters per second, calculate how fast the radius ls growing at Ihe instant it pops. HINT [See Enamels 1.] {The volume ora sphara ofradius r Is v = gut-3. Round your answer be two declmal plaass.) cm/s Need Help? i i A point an the graph nfy = 11x is moving along the tune in such a way that ii: xcoordinate Is Increasing at a rate if! unils per second. What is happening to the ynoordlnate at Ihe Instant the yoonrdlnate is equal to 3? The recur-dinette is at a rate of units perseoond. Need Help