At a concession stand, three hot dogs) and two hamburgers) cost $7.25 two hot dog(s) and three hamburger(s) cost $7.75 find the cost of one hot dog ands the cost of one hamburger

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

The lengths of the two sides of a right triangle are 5 inches and 8 inches what is the difference the possible lengths of the third side of the triangle

Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. use a significance level of 0.05. r=0.105, n=15 a: critical values: r= +0.514, no significant linear correlations b: critical values: r= +0.514, significant linear correlation c: critical values: r= +0.532, no significant linear correlation d: critical values: r= 0.514, no significant linear correlation will mark brainliest !