A rectangular portion of an airport runway was getting repaired for which an estimate was
made on the basis of a rate R per square unit.
But while doing the work, the length of the
portion got increased by 10% and the breadth
by 8%. Over and above this, there was an in-
crease in the cost of the repair work to the
extent of 15%. What was the overall percent-
age increase in the cost of repair over the es-
timate ?
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Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

Which statement explains which thermometer is more appropriate to measure the temperature of a liquid at 43.6 degrees celsius a) thermometer a, because it measures temperature more accurately than thermometer b b) thermometer b, because it measures temperature more accurately than thermometer a c) thermometer a, because it measures temperature more precisely than thermometer b d) thermometer b, because it measures temperature more precisely than thermometer a

Spaghetti sauce can be high in sodium. what is a good guideline for mg of sodium per half cup serving? a. less than 1 mg b. less than 800 mg c. less than 700 mg d. less than 400 mg